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Finding the Fourth Proportional to 107,963.78, 148,912.89 and 93,597.93

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Solution

The fourth proportional to 107,963.78, 148,912.89 and 93,597.93 is: 129,098.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,963.78 : 148,912.89 = 93,597.93 : x
  2. Step 2: Convert to fraction form
    107,963.78/148,912.89 = 93,597.93/x
  3. Step 3: Cross multiply
    107,963.78x = 148,912.89 × 93,597.93
  4. Step 4: Simplify right side
    107,963.78x = 13,937,938,254.32
  5. Step 5: Solve for x
    x = 13,937,938,254.32/107,963.78
  6. Step 6: Final answer
    x = 129,098.28

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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.