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Finding the Fourth Proportional to 124,563.40, 186,844.46 and 74,658.40

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Solution

The fourth proportional to 124,563.40, 186,844.46 and 74,658.40 is: 111,987.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,563.40 : 186,844.46 = 74,658.40 : x
  2. Step 2: Convert to fraction form
    124,563.40/186,844.46 = 74,658.40/x
  3. Step 3: Cross multiply
    124,563.40x = 186,844.46 × 74,658.40
  4. Step 4: Simplify right side
    124,563.40x = 13,949,508,432.46
  5. Step 5: Solve for x
    x = 13,949,508,432.46/124,563.40
  6. Step 6: Final answer
    x = 111,987.22

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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.