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Finding the Fourth Proportional to 124,551.60, 171,881.64 and 67,963.92

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Solution

The fourth proportional to 124,551.60, 171,881.64 and 67,963.92 is: 93,790.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,551.60 : 171,881.64 = 67,963.92 : x
  2. Step 2: Convert to fraction form
    124,551.60/171,881.64 = 67,963.92/x
  3. Step 3: Cross multiply
    124,551.60x = 171,881.64 × 67,963.92
  4. Step 4: Simplify right side
    124,551.60x = 11,681,750,030.43
  5. Step 5: Solve for x
    x = 11,681,750,030.43/124,551.60
  6. Step 6: Final answer
    x = 93,790.45

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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.