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Finding the Fourth Proportional to 124,674.60, 187,011.90 and 40,434.60

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Solution

The fourth proportional to 124,674.60, 187,011.90 and 40,434.60 is: 60,651.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,674.60 : 187,011.90 = 40,434.60 : x
  2. Step 2: Convert to fraction form
    124,674.60/187,011.90 = 40,434.60/x
  3. Step 3: Cross multiply
    124,674.60x = 187,011.90 × 40,434.60
  4. Step 4: Simplify right side
    124,674.60x = 7,561,751,371.74
  5. Step 5: Solve for x
    x = 7,561,751,371.74/124,674.60
  6. Step 6: Final answer
    x = 60,651.90

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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.