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Finding the Fourth Proportional to 162,872.91, 224,764.47 and 90,280.44

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Solution

The fourth proportional to 162,872.91, 224,764.47 and 90,280.44 is: 124,586.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,872.91 : 224,764.47 = 90,280.44 : x
  2. Step 2: Convert to fraction form
    162,872.91/224,764.47 = 90,280.44/x
  3. Step 3: Cross multiply
    162,872.91x = 224,764.47 × 90,280.44
  4. Step 4: Simplify right side
    162,872.91x = 20,291,835,247.97
  5. Step 5: Solve for x
    x = 20,291,835,247.97/162,872.91
  6. Step 6: Final answer
    x = 124,586.93

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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.