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Finding the Fourth Proportional to 85,248.86, 127,868.74 and 26,084.57

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Solution

The fourth proportional to 85,248.86, 127,868.74 and 26,084.57 is: 39,125.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,248.86 : 127,868.74 = 26,084.57 : x
  2. Step 2: Convert to fraction form
    85,248.86/127,868.74 = 26,084.57/x
  3. Step 3: Cross multiply
    85,248.86x = 127,868.74 × 26,084.57
  4. Step 4: Simplify right side
    85,248.86x = 3,335,400,394.79
  5. Step 5: Solve for x
    x = 3,335,400,394.79/85,248.86
  6. Step 6: Final answer
    x = 39,125.46

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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.