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Finding the Fourth Proportional to 125,275.21, 187,892.81 and 36,507.95

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Solution

The fourth proportional to 125,275.21, 187,892.81 and 36,507.95 is: 54,756.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,275.21 : 187,892.81 = 36,507.95 : x
  2. Step 2: Convert to fraction form
    125,275.21/187,892.81 = 36,507.95/x
  3. Step 3: Cross multiply
    125,275.21x = 187,892.81 × 36,507.95
  4. Step 4: Simplify right side
    125,275.21x = 6,859,581,312.84
  5. Step 5: Solve for x
    x = 6,859,581,312.84/125,275.21
  6. Step 6: Final answer
    x = 54,756.10

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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.