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Finding the Fourth Proportional to 91,859.30, 137,788.95 and 29,536.10

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Solution

The fourth proportional to 91,859.30, 137,788.95 and 29,536.10 is: 44,304.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,859.30 : 137,788.95 = 29,536.10 : x
  2. Step 2: Convert to fraction form
    91,859.30/137,788.95 = 29,536.10/x
  3. Step 3: Cross multiply
    91,859.30x = 137,788.95 × 29,536.10
  4. Step 4: Simplify right side
    91,859.30x = 4,069,748,206.10
  5. Step 5: Solve for x
    x = 4,069,748,206.10/91,859.30
  6. Step 6: Final answer
    x = 44,304.15

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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.