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Finding the Fourth Proportional to 162,687.22, 224,392.39 and 99,029.10

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Solution

The fourth proportional to 162,687.22, 224,392.39 and 99,029.10 is: 136,589.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,687.22 : 224,392.39 = 99,029.10 : x
  2. Step 2: Convert to fraction form
    162,687.22/224,392.39 = 99,029.10/x
  3. Step 3: Cross multiply
    162,687.22x = 224,392.39 × 99,029.10
  4. Step 4: Simplify right side
    162,687.22x = 22,221,376,428.55
  5. Step 5: Solve for x
    x = 22,221,376,428.55/162,687.22
  6. Step 6: Final answer
    x = 136,589.56

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1.5x scale

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.