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Finding the Fourth Proportional to 229,690.41, 316,983.36 and 127,726.20

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Solution

The fourth proportional to 229,690.41, 316,983.36 and 127,726.20 is: 176,268.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,690.41 : 316,983.36 = 127,726.20 : x
  2. Step 2: Convert to fraction form
    229,690.41/316,983.36 = 127,726.20/x
  3. Step 3: Cross multiply
    229,690.41x = 316,983.36 × 127,726.20
  4. Step 4: Simplify right side
    229,690.41x = 40,487,080,036.03
  5. Step 5: Solve for x
    x = 40,487,080,036.03/229,690.41
  6. Step 6: Final answer
    x = 176,268.05

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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.