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Finding the Fourth Proportional to 91,221.84, 136,776.87 and 32,064.30

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Solution

The fourth proportional to 91,221.84, 136,776.87 and 32,064.30 is: 48,076.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,221.84 : 136,776.87 = 32,064.30 : x
  2. Step 2: Convert to fraction form
    91,221.84/136,776.87 = 32,064.30/x
  3. Step 3: Cross multiply
    91,221.84x = 136,776.87 × 32,064.30
  4. Step 4: Simplify right side
    91,221.84x = 4,385,654,592.74
  5. Step 5: Solve for x
    x = 4,385,654,592.74/91,221.84
  6. Step 6: Final answer
    x = 48,076.80

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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.