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Finding the Fourth Proportional to 80,733,148.20, 121,099,722.30 and 80,733,148.20

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Solution

The fourth proportional to 80,733,148.20, 121,099,722.30 and 80,733,148.20 is: 121,099,722.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,733,148.20 : 121,099,722.30 = 80,733,148.20 : x
  2. Step 2: Convert to fraction form
    80,733,148.20/121,099,722.30 = 80,733,148.20/x
  3. Step 3: Cross multiply
    80,733,148.20x = 121,099,722.30 × 80,733,148.20
  4. Step 4: Simplify right side
    80,733,148.20x = 9,776,761,827,424,744
  5. Step 5: Solve for x
    x = 9,776,761,827,424,744/80,733,148.20
  6. Step 6: Final answer
    x = 121,099,722.30

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.