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Finding the Fourth Proportional to 92,609.40, 127,803.06 and 54,379.92

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Solution

The fourth proportional to 92,609.40, 127,803.06 and 54,379.92 is: 75,045.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,609.40 : 127,803.06 = 54,379.92 : x
  2. Step 2: Convert to fraction form
    92,609.40/127,803.06 = 54,379.92/x
  3. Step 3: Cross multiply
    92,609.40x = 127,803.06 × 54,379.92
  4. Step 4: Simplify right side
    92,609.40x = 6,949,920,178.56
  5. Step 5: Solve for x
    x = 6,949,920,178.56/92,609.40
  6. Step 6: Final answer
    x = 75,045.52

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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.