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Finding the Fourth Proportional to 229,871.32, 317,217.46 and 133,079.28

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Solution

The fourth proportional to 229,871.32, 317,217.46 and 133,079.28 is: 183,646.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,871.32 : 317,217.46 = 133,079.28 : x
  2. Step 2: Convert to fraction form
    229,871.32/317,217.46 = 133,079.28/x
  3. Step 3: Cross multiply
    229,871.32x = 317,217.46 × 133,079.28
  4. Step 4: Simplify right side
    229,871.32x = 42,215,070,425.38
  5. Step 5: Solve for x
    x = 42,215,070,425.38/229,871.32
  6. Step 6: Final answer
    x = 183,646.53

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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.