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Finding the Fourth Proportional to 125,309.19, 187,916.94 and 50,404.02

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Solution

The fourth proportional to 125,309.19, 187,916.94 and 50,404.02 is: 75,587.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,309.19 : 187,916.94 = 50,404.02 : x
  2. Step 2: Convert to fraction form
    125,309.19/187,916.94 = 50,404.02/x
  3. Step 3: Cross multiply
    125,309.19x = 187,916.94 × 50,404.02
  4. Step 4: Simplify right side
    125,309.19x = 9,471,769,202.10
  5. Step 5: Solve for x
    x = 9,471,769,202.10/125,309.19
  6. Step 6: Final answer
    x = 75,587.19

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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.