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Finding the Fourth Proportional to 229,007.52, 316,068.18 and 127,065.78

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Solution

The fourth proportional to 229,007.52, 316,068.18 and 127,065.78 is: 175,371.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,007.52 : 316,068.18 = 127,065.78 : x
  2. Step 2: Convert to fraction form
    229,007.52/316,068.18 = 127,065.78/x
  3. Step 3: Cross multiply
    229,007.52x = 316,068.18 × 127,065.78
  4. Step 4: Simplify right side
    229,007.52x = 40,161,449,824.88
  5. Step 5: Solve for x
    x = 40,161,449,824.88/229,007.52
  6. Step 6: Final answer
    x = 175,371.75

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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.