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Finding the Fourth Proportional to 67,410.99, 101,129.49 and 25,854.75

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Solution

The fourth proportional to 67,410.99, 101,129.49 and 25,854.75 is: 38,787.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,410.99 : 101,129.49 = 25,854.75 : x
  2. Step 2: Convert to fraction form
    67,410.99/101,129.49 = 25,854.75/x
  3. Step 3: Cross multiply
    67,410.99x = 101,129.49 × 25,854.75
  4. Step 4: Simplify right side
    67,410.99x = 2,614,677,681.58
  5. Step 5: Solve for x
    x = 2,614,677,681.58/67,410.99
  6. Step 6: Final answer
    x = 38,787.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.