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Finding the Fourth Proportional to 67,646.88, 101,349.95 and 57,685.10

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Solution

The fourth proportional to 67,646.88, 101,349.95 and 57,685.10 is: 86,424.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,646.88 : 101,349.95 = 57,685.10 : x
  2. Step 2: Convert to fraction form
    67,646.88/101,349.95 = 57,685.10/x
  3. Step 3: Cross multiply
    67,646.88x = 101,349.95 × 57,685.10
  4. Step 4: Simplify right side
    67,646.88x = 5,846,381,205.57
  5. Step 5: Solve for x
    x = 5,846,381,205.57/67,646.88
  6. Step 6: Final answer
    x = 86,424.99

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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.