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Finding the Fourth Proportional to 229,008.71, 316,033.92 and 127,040.87

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Solution

The fourth proportional to 229,008.71, 316,033.92 and 127,040.87 is: 175,317.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,008.71 : 316,033.92 = 127,040.87 : x
  2. Step 2: Convert to fraction form
    229,008.71/316,033.92 = 127,040.87/x
  3. Step 3: Cross multiply
    229,008.71x = 316,033.92 × 127,040.87
  4. Step 4: Simplify right side
    229,008.71x = 40,149,224,936.40
  5. Step 5: Solve for x
    x = 40,149,224,936.40/229,008.71
  6. Step 6: Final answer
    x = 175,317.46

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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.