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Finding the Fourth Proportional to 125,307.69, 187,914.69 and 50,402.52

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Solution

The fourth proportional to 125,307.69, 187,914.69 and 50,402.52 is: 75,584.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,307.69 : 187,914.69 = 50,402.52 : x
  2. Step 2: Convert to fraction form
    125,307.69/187,914.69 = 50,402.52/x
  3. Step 3: Cross multiply
    125,307.69x = 187,914.69 × 50,402.52
  4. Step 4: Simplify right side
    125,307.69x = 9,471,373,921.02
  5. Step 5: Solve for x
    x = 9,471,373,921.02/125,307.69
  6. Step 6: Final answer
    x = 75,584.94

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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.