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Finding the Fourth Proportional to 88,379.85, 121,966.76 and 48,096.21

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Solution

The fourth proportional to 88,379.85, 121,966.76 and 48,096.21 is: 66,374.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,379.85 : 121,966.76 = 48,096.21 : x
  2. Step 2: Convert to fraction form
    88,379.85/121,966.76 = 48,096.21/x
  3. Step 3: Cross multiply
    88,379.85x = 121,966.76 × 48,096.21
  4. Step 4: Simplify right side
    88,379.85x = 5,866,138,522.99
  5. Step 5: Solve for x
    x = 5,866,138,522.99/88,379.85
  6. Step 6: Final answer
    x = 66,374.16

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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.