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Finding the Fourth Proportional to 73,150.75, 100,948.04 and 39,616.75

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Solution

The fourth proportional to 73,150.75, 100,948.04 and 39,616.75 is: 54,671.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,150.75 : 100,948.04 = 39,616.75 : x
  2. Step 2: Convert to fraction form
    73,150.75/100,948.04 = 39,616.75/x
  3. Step 3: Cross multiply
    73,150.75x = 100,948.04 × 39,616.75
  4. Step 4: Simplify right side
    73,150.75x = 3,999,233,263.67
  5. Step 5: Solve for x
    x = 3,999,233,263.67/73,150.75
  6. Step 6: Final answer
    x = 54,671.12

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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.