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Finding the Fourth Proportional to 73,081.45, 100,860.91 and 60,795.15

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Solution

The fourth proportional to 73,081.45, 100,860.91 and 60,795.15 is: 83,904.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,081.45 : 100,860.91 = 60,795.15 : x
  2. Step 2: Convert to fraction form
    73,081.45/100,860.91 = 60,795.15/x
  3. Step 3: Cross multiply
    73,081.45x = 100,860.91 × 60,795.15
  4. Step 4: Simplify right side
    73,081.45x = 6,131,854,152.59
  5. Step 5: Solve for x
    x = 6,131,854,152.59/73,081.45
  6. Step 6: Final answer
    x = 83,904.39

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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.