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Finding the Fourth Proportional to 86,552.70, 129,756.15 and 44,999.70

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Solution

The fourth proportional to 86,552.70, 129,756.15 and 44,999.70 is: 67,461.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,552.70 : 129,756.15 = 44,999.70 : x
  2. Step 2: Convert to fraction form
    86,552.70/129,756.15 = 44,999.70/x
  3. Step 3: Cross multiply
    86,552.70x = 129,756.15 × 44,999.70
  4. Step 4: Simplify right side
    86,552.70x = 5,838,987,823.16
  5. Step 5: Solve for x
    x = 5,838,987,823.16/86,552.70
  6. Step 6: Final answer
    x = 67,461.65

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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.