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Finding the Fourth Proportional to 147,796.10, 221,694.15 and 103,472.90

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Solution

The fourth proportional to 147,796.10, 221,694.15 and 103,472.90 is: 155,209.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,796.10 : 221,694.15 = 103,472.90 : x
  2. Step 2: Convert to fraction form
    147,796.10/221,694.15 = 103,472.90/x
  3. Step 3: Cross multiply
    147,796.10x = 221,694.15 × 103,472.90
  4. Step 4: Simplify right side
    147,796.10x = 22,939,336,613.54
  5. Step 5: Solve for x
    x = 22,939,336,613.54/147,796.10
  6. Step 6: Final answer
    x = 155,209.35

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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.