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Finding the Fourth Proportional to 63,124.20, 87,113.21 and 34,831.71

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Solution

The fourth proportional to 63,124.20, 87,113.21 and 34,831.71 is: 48,068.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,124.20 : 87,113.21 = 34,831.71 : x
  2. Step 2: Convert to fraction form
    63,124.20/87,113.21 = 34,831.71/x
  3. Step 3: Cross multiply
    63,124.20x = 87,113.21 × 34,831.71
  4. Step 4: Simplify right side
    63,124.20x = 3,034,301,893.73
  5. Step 5: Solve for x
    x = 3,034,301,893.73/63,124.20
  6. Step 6: Final answer
    x = 48,068.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.