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Finding the Fourth Proportional to 125,615.10, 188,729.85 and 94,511.10

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Solution

The fourth proportional to 125,615.10, 188,729.85 and 94,511.10 is: 141,997.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,615.10 : 188,729.85 = 94,511.10 : x
  2. Step 2: Convert to fraction form
    125,615.10/188,729.85 = 94,511.10/x
  3. Step 3: Cross multiply
    125,615.10x = 188,729.85 × 94,511.10
  4. Step 4: Simplify right side
    125,615.10x = 17,837,065,726.34
  5. Step 5: Solve for x
    x = 17,837,065,726.34/125,615.10
  6. Step 6: Final answer
    x = 141,997.78

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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.