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Finding the Fourth Proportional to 229,167.16, 316,245.90 and 127,186.71

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Solution

The fourth proportional to 229,167.16, 316,245.90 and 127,186.71 is: 175,515.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,167.16 : 316,245.90 = 127,186.71 : x
  2. Step 2: Convert to fraction form
    229,167.16/316,245.90 = 127,186.71/x
  3. Step 3: Cross multiply
    229,167.16x = 316,245.90 × 127,186.71
  4. Step 4: Simplify right side
    229,167.16x = 40,222,274,863.02
  5. Step 5: Solve for x
    x = 40,222,274,863.02/229,167.16
  6. Step 6: Final answer
    x = 175,515.01

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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.