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Finding the Fourth Proportional to 73,150.77, 100,948.19 and 39,616.77

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Solution

The fourth proportional to 73,150.77, 100,948.19 and 39,616.77 is: 54,671.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,150.77 : 100,948.19 = 39,616.77 : x
  2. Step 2: Convert to fraction form
    73,150.77/100,948.19 = 39,616.77/x
  3. Step 3: Cross multiply
    73,150.77x = 100,948.19 × 39,616.77
  4. Step 4: Simplify right side
    73,150.77x = 3,999,241,225.15
  5. Step 5: Solve for x
    x = 3,999,241,225.15/73,150.77
  6. Step 6: Final answer
    x = 54,671.21

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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.