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Finding the Fourth Proportional to 85,159.61, 127,758.17 and 25,999.91

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Solution

The fourth proportional to 85,159.61, 127,758.17 and 25,999.91 is: 39,005.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,159.61 : 127,758.17 = 25,999.91 : x
  2. Step 2: Convert to fraction form
    85,159.61/127,758.17 = 25,999.91/x
  3. Step 3: Cross multiply
    85,159.61x = 127,758.17 × 25,999.91
  4. Step 4: Simplify right side
    85,159.61x = 3,321,700,347.97
  5. Step 5: Solve for x
    x = 3,321,700,347.97/85,159.61
  6. Step 6: Final answer
    x = 39,005.59

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1.5x scale

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.