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Finding the Fourth Proportional to 85,326.64, 127,886.18 and 60,373.89

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Solution

The fourth proportional to 85,326.64, 127,886.18 and 60,373.89 is: 90,487.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,326.64 : 127,886.18 = 60,373.89 : x
  2. Step 2: Convert to fraction form
    85,326.64/127,886.18 = 60,373.89/x
  3. Step 3: Cross multiply
    85,326.64x = 127,886.18 × 60,373.89
  4. Step 4: Simplify right side
    85,326.64x = 7,720,985,861.97
  5. Step 5: Solve for x
    x = 7,720,985,861.97/85,326.64
  6. Step 6: Final answer
    x = 90,487.40

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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.