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Finding the Fourth Proportional to 338,129.96, 507,451.92 and 125,099.47

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Solution

The fourth proportional to 338,129.96, 507,451.92 and 125,099.47 is: 187,744.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,129.96 : 507,451.92 = 125,099.47 : x
  2. Step 2: Convert to fraction form
    338,129.96/507,451.92 = 125,099.47/x
  3. Step 3: Cross multiply
    338,129.96x = 507,451.92 × 125,099.47
  4. Step 4: Simplify right side
    338,129.96x = 63,481,963,079.73
  5. Step 5: Solve for x
    x = 63,481,963,079.73/338,129.96
  6. Step 6: Final answer
    x = 187,744.27

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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.