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Finding the Fourth Proportional to 111,298.80, 153,591.48 and 60,997.68

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Solution

The fourth proportional to 111,298.80, 153,591.48 and 60,997.68 is: 84,176.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,298.80 : 153,591.48 = 60,997.68 : x
  2. Step 2: Convert to fraction form
    111,298.80/153,591.48 = 60,997.68/x
  3. Step 3: Cross multiply
    111,298.80x = 153,591.48 × 60,997.68
  4. Step 4: Simplify right side
    111,298.80x = 9,368,723,947.77
  5. Step 5: Solve for x
    x = 9,368,723,947.77/111,298.80
  6. Step 6: Final answer
    x = 84,176.32

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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.