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Finding the Fourth Proportional to 131,963.88, 197,904.01 and 47,712.89

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Solution

The fourth proportional to 131,963.88, 197,904.01 and 47,712.89 is: 71,554.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,963.88 : 197,904.01 = 47,712.89 : x
  2. Step 2: Convert to fraction form
    131,963.88/197,904.01 = 47,712.89/x
  3. Step 3: Cross multiply
    131,963.88x = 197,904.01 × 47,712.89
  4. Step 4: Simplify right side
    131,963.88x = 9,442,572,259.69
  5. Step 5: Solve for x
    x = 9,442,572,259.69/131,963.88
  6. Step 6: Final answer
    x = 71,554.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.