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Finding the Fourth Proportional to 125,888.29, 188,763.42 and 49,909.86

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Solution

The fourth proportional to 125,888.29, 188,763.42 and 49,909.86 is: 74,837.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,888.29 : 188,763.42 = 49,909.86 : x
  2. Step 2: Convert to fraction form
    125,888.29/188,763.42 = 49,909.86/x
  3. Step 3: Cross multiply
    125,888.29x = 188,763.42 × 49,909.86
  4. Step 4: Simplify right side
    125,888.29x = 9,421,155,615.77
  5. Step 5: Solve for x
    x = 9,421,155,615.77/125,888.29
  6. Step 6: Final answer
    x = 74,837.43

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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.