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Finding the Fourth Proportional to 125,655.93, 188,481.28 and 41,421.13

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Solution

The fourth proportional to 125,655.93, 188,481.28 and 41,421.13 is: 62,130.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,655.93 : 188,481.28 = 41,421.13 : x
  2. Step 2: Convert to fraction form
    125,655.93/188,481.28 = 41,421.13/x
  3. Step 3: Cross multiply
    125,655.93x = 188,481.28 × 41,421.13
  4. Step 4: Simplify right side
    125,655.93x = 7,807,107,601.45
  5. Step 5: Solve for x
    x = 7,807,107,601.45/125,655.93
  6. Step 6: Final answer
    x = 62,130.83

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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.