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Finding the Fourth Proportional to 148,679.96, 205,085.01 and 88,207.79

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Solution

The fourth proportional to 148,679.96, 205,085.01 and 88,207.79 is: 121,671.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,679.96 : 205,085.01 = 88,207.79 : x
  2. Step 2: Convert to fraction form
    148,679.96/205,085.01 = 88,207.79/x
  3. Step 3: Cross multiply
    148,679.96x = 205,085.01 × 88,207.79
  4. Step 4: Simplify right side
    148,679.96x = 18,090,094,468.80
  5. Step 5: Solve for x
    x = 18,090,094,468.80/148,679.96
  6. Step 6: Final answer
    x = 121,671.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.