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Finding the Fourth Proportional to 163,472.10, 225,598.14 and 91,851.90

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Solution

The fourth proportional to 163,472.10, 225,598.14 and 91,851.90 is: 126,759.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,472.10 : 225,598.14 = 91,851.90 : x
  2. Step 2: Convert to fraction form
    163,472.10/225,598.14 = 91,851.90/x
  3. Step 3: Cross multiply
    163,472.10x = 225,598.14 × 91,851.90
  4. Step 4: Simplify right side
    163,472.10x = 20,721,617,795.47
  5. Step 5: Solve for x
    x = 20,721,617,795.47/163,472.10
  6. Step 6: Final answer
    x = 126,759.35

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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.