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Finding the Fourth Proportional to 92,085.32, 127,079.04 and 54,359.56

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Solution

The fourth proportional to 92,085.32, 127,079.04 and 54,359.56 is: 75,016.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,085.32 : 127,079.04 = 54,359.56 : x
  2. Step 2: Convert to fraction form
    92,085.32/127,079.04 = 54,359.56/x
  3. Step 3: Cross multiply
    92,085.32x = 127,079.04 × 54,359.56
  4. Step 4: Simplify right side
    92,085.32x = 6,907,960,699.62
  5. Step 5: Solve for x
    x = 6,907,960,699.62/92,085.32
  6. Step 6: Final answer
    x = 75,016.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.