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Finding the Fourth Proportional to 229,171.51, 316,254.29 and 127,197.85

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Solution

The fourth proportional to 229,171.51, 316,254.29 and 127,197.85 is: 175,531.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,171.51 : 316,254.29 = 127,197.85 : x
  2. Step 2: Convert to fraction form
    229,171.51/316,254.29 = 127,197.85/x
  3. Step 3: Cross multiply
    229,171.51x = 316,254.29 × 127,197.85
  4. Step 4: Simplify right side
    229,171.51x = 40,226,865,105.29
  5. Step 5: Solve for x
    x = 40,226,865,105.29/229,171.51
  6. Step 6: Final answer
    x = 175,531.70

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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.