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Finding the Fourth Proportional to 229,939.59, 317,314.31 and 127,963.32

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Solution

The fourth proportional to 229,939.59, 317,314.31 and 127,963.32 is: 176,588.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,939.59 : 317,314.31 = 127,963.32 : x
  2. Step 2: Convert to fraction form
    229,939.59/317,314.31 = 127,963.32/x
  3. Step 3: Cross multiply
    229,939.59x = 317,314.31 × 127,963.32
  4. Step 4: Simplify right side
    229,939.59x = 40,604,592,591.11
  5. Step 5: Solve for x
    x = 40,604,592,591.11/229,939.59
  6. Step 6: Final answer
    x = 176,588.09

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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.