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Finding the Fourth Proportional to 124,454.40, 186,681.60 and 71,966.40

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Solution

The fourth proportional to 124,454.40, 186,681.60 and 71,966.40 is: 107,949.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,454.40 : 186,681.60 = 71,966.40 : x
  2. Step 2: Convert to fraction form
    124,454.40/186,681.60 = 71,966.40/x
  3. Step 3: Cross multiply
    124,454.40x = 186,681.60 × 71,966.40
  4. Step 4: Simplify right side
    124,454.40x = 13,434,802,698.24
  5. Step 5: Solve for x
    x = 13,434,802,698.24/124,454.40
  6. Step 6: Final answer
    x = 107,949.60

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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.