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Finding the Fourth Proportional to 86,659.39, 119,522.01 and 56,454.22

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Solution

The fourth proportional to 86,659.39, 119,522.01 and 56,454.22 is: 77,862.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,659.39 : 119,522.01 = 56,454.22 : x
  2. Step 2: Convert to fraction form
    86,659.39/119,522.01 = 56,454.22/x
  3. Step 3: Cross multiply
    86,659.39x = 119,522.01 × 56,454.22
  4. Step 4: Simplify right side
    86,659.39x = 6,747,521,847.38
  5. Step 5: Solve for x
    x = 6,747,521,847.38/86,659.39
  6. Step 6: Final answer
    x = 77,862.56

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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.