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Finding the Fourth Proportional to 162,658.98, 224,476.40 and 90,061.86

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Solution

The fourth proportional to 162,658.98, 224,476.40 and 90,061.86 is: 124,289.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,658.98 : 224,476.40 = 90,061.86 : x
  2. Step 2: Convert to fraction form
    162,658.98/224,476.40 = 90,061.86/x
  3. Step 3: Cross multiply
    162,658.98x = 224,476.40 × 90,061.86
  4. Step 4: Simplify right side
    162,658.98x = 20,216,762,110.10
  5. Step 5: Solve for x
    x = 20,216,762,110.10/162,658.98
  6. Step 6: Final answer
    x = 124,289.25

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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.