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Finding the Fourth Proportional to 129,614.30, 181,984.90 and 129,614.30

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Solution

The fourth proportional to 129,614.30, 181,984.90 and 129,614.30 is: 181,984.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,614.30 : 181,984.90 = 129,614.30 : x
  2. Step 2: Convert to fraction form
    129,614.30/181,984.90 = 129,614.30/x
  3. Step 3: Cross multiply
    129,614.30x = 181,984.90 × 129,614.30
  4. Step 4: Simplify right side
    129,614.30x = 23,587,845,424.07
  5. Step 5: Solve for x
    x = 23,587,845,424.07/129,614.30
  6. Step 6: Final answer
    x = 181,984.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.