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Finding the Fourth Proportional to 239,212.60, 358,818.90 and 73,000.60

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Solution

The fourth proportional to 239,212.60, 358,818.90 and 73,000.60 is: 109,500.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,212.60 : 358,818.90 = 73,000.60 : x
  2. Step 2: Convert to fraction form
    239,212.60/358,818.90 = 73,000.60/x
  3. Step 3: Cross multiply
    239,212.60x = 358,818.90 × 73,000.60
  4. Step 4: Simplify right side
    239,212.60x = 26,193,994,991.34
  5. Step 5: Solve for x
    x = 26,193,994,991.34/239,212.60
  6. Step 6: Final answer
    x = 109,500.90

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Similar ratio
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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.