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Finding the Fourth Proportional to 105,903.20, 158,854.80 and 32,031.20

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Solution

The fourth proportional to 105,903.20, 158,854.80 and 32,031.20 is: 48,046.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,903.20 : 158,854.80 = 32,031.20 : x
  2. Step 2: Convert to fraction form
    105,903.20/158,854.80 = 32,031.20/x
  3. Step 3: Cross multiply
    105,903.20x = 158,854.80 × 32,031.20
  4. Step 4: Simplify right side
    105,903.20x = 5,088,309,869.76
  5. Step 5: Solve for x
    x = 5,088,309,869.76/105,903.20
  6. Step 6: Final answer
    x = 48,046.80

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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.