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Finding the Fourth Proportional to 117,480.90, 162,123.84 and 63,765.93

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Solution

The fourth proportional to 117,480.90, 162,123.84 and 63,765.93 is: 87,997.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,480.90 : 162,123.84 = 63,765.93 : x
  2. Step 2: Convert to fraction form
    117,480.90/162,123.84 = 63,765.93/x
  3. Step 3: Cross multiply
    117,480.90x = 162,123.84 × 63,765.93
  4. Step 4: Simplify right side
    117,480.90x = 10,337,977,432.77
  5. Step 5: Solve for x
    x = 10,337,977,432.77/117,480.90
  6. Step 6: Final answer
    x = 87,997.09

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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.