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Finding the Fourth Proportional to 123,352.68, 185,035.57 and 39,119.48

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Solution

The fourth proportional to 123,352.68, 185,035.57 and 39,119.48 is: 58,681.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,352.68 : 185,035.57 = 39,119.48 : x
  2. Step 2: Convert to fraction form
    123,352.68/185,035.57 = 39,119.48/x
  3. Step 3: Cross multiply
    123,352.68x = 185,035.57 × 39,119.48
  4. Step 4: Simplify right side
    123,352.68x = 7,238,495,279.90
  5. Step 5: Solve for x
    x = 7,238,495,279.90/123,352.68
  6. Step 6: Final answer
    x = 58,681.30

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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.