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Finding the Fourth Proportional to 70,831.53, 106,394.85 and 59,759.91

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Solution

The fourth proportional to 70,831.53, 106,394.85 and 59,759.91 is: 89,764.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,831.53 : 106,394.85 = 59,759.91 : x
  2. Step 2: Convert to fraction form
    70,831.53/106,394.85 = 59,759.91/x
  3. Step 3: Cross multiply
    70,831.53x = 106,394.85 × 59,759.91
  4. Step 4: Simplify right side
    70,831.53x = 6,358,146,660.46
  5. Step 5: Solve for x
    x = 6,358,146,660.46/70,831.53
  6. Step 6: Final answer
    x = 89,764.36

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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.