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Finding the Fourth Proportional to 229,191.76, 316,250.91 and 127,217.98

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Solution

The fourth proportional to 229,191.76, 316,250.91 and 127,217.98 is: 175,542.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,191.76 : 316,250.91 = 127,217.98 : x
  2. Step 2: Convert to fraction form
    229,191.76/316,250.91 = 127,217.98/x
  3. Step 3: Cross multiply
    229,191.76x = 316,250.91 × 127,217.98
  4. Step 4: Simplify right side
    229,191.76x = 40,232,801,943.36
  5. Step 5: Solve for x
    x = 40,232,801,943.36/229,191.76
  6. Step 6: Final answer
    x = 175,542.10

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1.5x scale

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.