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Finding the Fourth Proportional to 107,963.74, 148,912.81 and 93,597.87

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Solution

The fourth proportional to 107,963.74, 148,912.81 and 93,597.87 is: 129,098.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,963.74 : 148,912.81 = 93,597.87 : x
  2. Step 2: Convert to fraction form
    107,963.74/148,912.81 = 93,597.87/x
  3. Step 3: Cross multiply
    107,963.74x = 148,912.81 × 93,597.87
  4. Step 4: Simplify right side
    107,963.74x = 13,937,921,831.71
  5. Step 5: Solve for x
    x = 13,937,921,831.71/107,963.74
  6. Step 6: Final answer
    x = 129,098.18

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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.