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Finding the Fourth Proportional to 107,893.40, 148,891.55 and 60,146.64

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Solution

The fourth proportional to 107,893.40, 148,891.55 and 60,146.64 is: 83,001.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,893.40 : 148,891.55 = 60,146.64 : x
  2. Step 2: Convert to fraction form
    107,893.40/148,891.55 = 60,146.64/x
  3. Step 3: Cross multiply
    107,893.40x = 148,891.55 × 60,146.64
  4. Step 4: Simplify right side
    107,893.40x = 8,955,326,156.16
  5. Step 5: Solve for x
    x = 8,955,326,156.16/107,893.40
  6. Step 6: Final answer
    x = 83,001.62

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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.