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Finding the Fourth Proportional to 229,542.88, 316,768.90 and 127,565.12

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Solution

The fourth proportional to 229,542.88, 316,768.90 and 127,565.12 is: 176,039.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,542.88 : 316,768.90 = 127,565.12 : x
  2. Step 2: Convert to fraction form
    229,542.88/316,768.90 = 127,565.12/x
  3. Step 3: Cross multiply
    229,542.88x = 316,768.90 × 127,565.12
  4. Step 4: Simplify right side
    229,542.88x = 40,408,662,740.77
  5. Step 5: Solve for x
    x = 40,408,662,740.77/229,542.88
  6. Step 6: Final answer
    x = 176,039.71

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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.