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Finding the Fourth Proportional to 188,422.62, 260,024.67 and 103,541.10

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Solution

The fourth proportional to 188,422.62, 260,024.67 and 103,541.10 is: 142,887.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,422.62 : 260,024.67 = 103,541.10 : x
  2. Step 2: Convert to fraction form
    188,422.62/260,024.67 = 103,541.10/x
  3. Step 3: Cross multiply
    188,422.62x = 260,024.67 × 103,541.10
  4. Step 4: Simplify right side
    188,422.62x = 26,923,240,358.94
  5. Step 5: Solve for x
    x = 26,923,240,358.94/188,422.62
  6. Step 6: Final answer
    x = 142,887.52

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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.