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Finding the Fourth Proportional to 146,470.52, 202,129.62 and 79,402.52

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Solution

The fourth proportional to 146,470.52, 202,129.62 and 79,402.52 is: 109,575.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,470.52 : 202,129.62 = 79,402.52 : x
  2. Step 2: Convert to fraction form
    146,470.52/202,129.62 = 79,402.52/x
  3. Step 3: Cross multiply
    146,470.52x = 202,129.62 × 79,402.52
  4. Step 4: Simplify right side
    146,470.52x = 16,049,601,194.64
  5. Step 5: Solve for x
    x = 16,049,601,194.64/146,470.52
  6. Step 6: Final answer
    x = 109,575.64

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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.