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Finding the Fourth Proportional to 85,252.53, 127,867.32 and 61,672.89

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Solution

The fourth proportional to 85,252.53, 127,867.32 and 61,672.89 is: 92,501.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,252.53 : 127,867.32 = 61,672.89 : x
  2. Step 2: Convert to fraction form
    85,252.53/127,867.32 = 61,672.89/x
  3. Step 3: Cross multiply
    85,252.53x = 127,867.32 × 61,672.89
  4. Step 4: Simplify right side
    85,252.53x = 7,885,947,160.95
  5. Step 5: Solve for x
    x = 7,885,947,160.95/85,252.53
  6. Step 6: Final answer
    x = 92,501.03

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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.