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Finding the Fourth Proportional to 132,859.90, 186,142.10 and 132,859.90

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Solution

The fourth proportional to 132,859.90, 186,142.10 and 132,859.90 is: 186,142.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,859.90 : 186,142.10 = 132,859.90 : x
  2. Step 2: Convert to fraction form
    132,859.90/186,142.10 = 132,859.90/x
  3. Step 3: Cross multiply
    132,859.90x = 186,142.10 × 132,859.90
  4. Step 4: Simplify right side
    132,859.90x = 24,730,820,791.79
  5. Step 5: Solve for x
    x = 24,730,820,791.79/132,859.90
  6. Step 6: Final answer
    x = 186,142.10

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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.