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Finding the Fourth Proportional to 85,056.65, 127,439.17 and 60,051.95

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Solution

The fourth proportional to 85,056.65, 127,439.17 and 60,051.95 is: 89,974.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,056.65 : 127,439.17 = 60,051.95 : x
  2. Step 2: Convert to fraction form
    85,056.65/127,439.17 = 60,051.95/x
  3. Step 3: Cross multiply
    85,056.65x = 127,439.17 × 60,051.95
  4. Step 4: Simplify right side
    85,056.65x = 7,652,969,877.56
  5. Step 5: Solve for x
    x = 7,652,969,877.56/85,056.65
  6. Step 6: Final answer
    x = 89,974.98

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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.