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Finding the Fourth Proportional to 124,777.25, 187,128.96 and 36,031.52

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Solution

The fourth proportional to 124,777.25, 187,128.96 and 36,031.52 is: 54,036.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,777.25 : 187,128.96 = 36,031.52 : x
  2. Step 2: Convert to fraction form
    124,777.25/187,128.96 = 36,031.52/x
  3. Step 3: Cross multiply
    124,777.25x = 187,128.96 × 36,031.52
  4. Step 4: Simplify right side
    124,777.25x = 6,742,539,929.17
  5. Step 5: Solve for x
    x = 6,742,539,929.17/124,777.25
  6. Step 6: Final answer
    x = 54,036.61

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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.