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Finding the Fourth Proportional to 75,172.96, 103,617.78 and 50,966.08

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Solution

The fourth proportional to 75,172.96, 103,617.78 and 50,966.08 is: 70,251.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,172.96 : 103,617.78 = 50,966.08 : x
  2. Step 2: Convert to fraction form
    75,172.96/103,617.78 = 50,966.08/x
  3. Step 3: Cross multiply
    75,172.96x = 103,617.78 × 50,966.08
  4. Step 4: Simplify right side
    75,172.96x = 5,280,992,064.90
  5. Step 5: Solve for x
    x = 5,280,992,064.90/75,172.96
  6. Step 6: Final answer
    x = 70,251.22

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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.