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Finding the Fourth Proportional to 229,648.86, 316,877.13 and 127,671.48

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Solution

The fourth proportional to 229,648.86, 316,877.13 and 127,671.48 is: 176,165.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,648.86 : 316,877.13 = 127,671.48 : x
  2. Step 2: Convert to fraction form
    229,648.86/316,877.13 = 127,671.48/x
  3. Step 3: Cross multiply
    229,648.86x = 316,877.13 × 127,671.48
  4. Step 4: Simplify right side
    229,648.86x = 40,456,172,165.25
  5. Step 5: Solve for x
    x = 40,456,172,165.25/229,648.86
  6. Step 6: Final answer
    x = 176,165.35

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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.