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Finding the Fourth Proportional to 174,645.16, 261,748.53 and 74,687.77

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Solution

The fourth proportional to 174,645.16, 261,748.53 and 74,687.77 is: 111,937.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,645.16 : 261,748.53 = 74,687.77 : x
  2. Step 2: Convert to fraction form
    174,645.16/261,748.53 = 74,687.77/x
  3. Step 3: Cross multiply
    174,645.16x = 261,748.53 × 74,687.77
  4. Step 4: Simplify right side
    174,645.16x = 19,549,414,006.48
  5. Step 5: Solve for x
    x = 19,549,414,006.48/174,645.16
  6. Step 6: Final answer
    x = 111,937.91

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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.