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Finding the Fourth Proportional to 142,863.52, 196,937.04 and 95,015.20

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Solution

The fourth proportional to 142,863.52, 196,937.04 and 95,015.20 is: 130,978.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,863.52 : 196,937.04 = 95,015.20 : x
  2. Step 2: Convert to fraction form
    142,863.52/196,937.04 = 95,015.20/x
  3. Step 3: Cross multiply
    142,863.52x = 196,937.04 × 95,015.20
  4. Step 4: Simplify right side
    142,863.52x = 18,712,012,243.01
  5. Step 5: Solve for x
    x = 18,712,012,243.01/142,863.52
  6. Step 6: Final answer
    x = 130,978.24

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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.