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Finding the Fourth Proportional to 141,064.52, 211,679.54 and 52,379.60

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Solution

The fourth proportional to 141,064.52, 211,679.54 and 52,379.60 is: 78,600.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,064.52 : 211,679.54 = 52,379.60 : x
  2. Step 2: Convert to fraction form
    141,064.52/211,679.54 = 52,379.60/x
  3. Step 3: Cross multiply
    141,064.52x = 211,679.54 × 52,379.60
  4. Step 4: Simplify right side
    141,064.52x = 11,087,689,633.38
  5. Step 5: Solve for x
    x = 11,087,689,633.38/141,064.52
  6. Step 6: Final answer
    x = 78,600.13

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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.