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Finding the Fourth Proportional to 125,038.20, 187,581.60 and 36,294.60

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Solution

The fourth proportional to 125,038.20, 187,581.60 and 36,294.60 is: 54,448.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,038.20 : 187,581.60 = 36,294.60 : x
  2. Step 2: Convert to fraction form
    125,038.20/187,581.60 = 36,294.60/x
  3. Step 3: Cross multiply
    125,038.20x = 187,581.60 × 36,294.60
  4. Step 4: Simplify right side
    125,038.20x = 6,808,199,139.36
  5. Step 5: Solve for x
    x = 6,808,199,139.36/125,038.20
  6. Step 6: Final answer
    x = 54,448.95

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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.