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Finding the Fourth Proportional to 63,917.20, 95,875.80 and 40,646.80

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Solution

The fourth proportional to 63,917.20, 95,875.80 and 40,646.80 is: 60,970.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,917.20 : 95,875.80 = 40,646.80 : x
  2. Step 2: Convert to fraction form
    63,917.20/95,875.80 = 40,646.80/x
  3. Step 3: Cross multiply
    63,917.20x = 95,875.80 × 40,646.80
  4. Step 4: Simplify right side
    63,917.20x = 3,897,044,467.44
  5. Step 5: Solve for x
    x = 3,897,044,467.44/63,917.20
  6. Step 6: Final answer
    x = 60,970.20

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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.