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Finding the Fourth Proportional to 124,947.80, 187,464.90 and 120,627.80

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Solution

The fourth proportional to 124,947.80, 187,464.90 and 120,627.80 is: 180,983.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,947.80 : 187,464.90 = 120,627.80 : x
  2. Step 2: Convert to fraction form
    124,947.80/187,464.90 = 120,627.80/x
  3. Step 3: Cross multiply
    124,947.80x = 187,464.90 × 120,627.80
  4. Step 4: Simplify right side
    124,947.80x = 22,613,478,464.22
  5. Step 5: Solve for x
    x = 22,613,478,464.22/124,947.80
  6. Step 6: Final answer
    x = 180,983.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.