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Finding the Fourth Proportional to 107,542.56, 148,374.48 and 65,087.52

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Solution

The fourth proportional to 107,542.56, 148,374.48 and 65,087.52 is: 89,800.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,542.56 : 148,374.48 = 65,087.52 : x
  2. Step 2: Convert to fraction form
    107,542.56/148,374.48 = 65,087.52/x
  3. Step 3: Cross multiply
    107,542.56x = 148,374.48 × 65,087.52
  4. Step 4: Simplify right side
    107,542.56x = 9,657,326,934.49
  5. Step 5: Solve for x
    x = 9,657,326,934.49/107,542.56
  6. Step 6: Final answer
    x = 89,800.05

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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.