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Finding the Fourth Proportional to 124,661.40, 186,987.30 and 41,555.40

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Solution

The fourth proportional to 124,661.40, 186,987.30 and 41,555.40 is: 62,331.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,661.40 : 186,987.30 = 41,555.40 : x
  2. Step 2: Convert to fraction form
    124,661.40/186,987.30 = 41,555.40/x
  3. Step 3: Cross multiply
    124,661.40x = 186,987.30 × 41,555.40
  4. Step 4: Simplify right side
    124,661.40x = 7,770,332,046.42
  5. Step 5: Solve for x
    x = 7,770,332,046.42/124,661.40
  6. Step 6: Final answer
    x = 62,331.50

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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.