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Finding the Fourth Proportional to 63,124.28, 87,113.31 and 34,831.79

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Solution

The fourth proportional to 63,124.28, 87,113.31 and 34,831.79 is: 48,068.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,124.28 : 87,113.31 = 34,831.79 : x
  2. Step 2: Convert to fraction form
    63,124.28/87,113.31 = 34,831.79/x
  3. Step 3: Cross multiply
    63,124.28x = 87,113.31 × 34,831.79
  4. Step 4: Simplify right side
    63,124.28x = 3,034,312,084.56
  5. Step 5: Solve for x
    x = 3,034,312,084.56/63,124.28
  6. Step 6: Final answer
    x = 48,068.86

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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.