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Finding the Fourth Proportional to 86,133.62, 129,255.18 and 44,580.62

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Solution

The fourth proportional to 86,133.62, 129,255.18 and 44,580.62 is: 66,899.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,133.62 : 129,255.18 = 44,580.62 : x
  2. Step 2: Convert to fraction form
    86,133.62/129,255.18 = 44,580.62/x
  3. Step 3: Cross multiply
    86,133.62x = 129,255.18 × 44,580.62
  4. Step 4: Simplify right side
    86,133.62x = 5,762,276,062.61
  5. Step 5: Solve for x
    x = 5,762,276,062.61/86,133.62
  6. Step 6: Final answer
    x = 66,899.27

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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.