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Finding the Fourth Proportional to 207,498.80, 310,531.40 and 124,452.40

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Solution

The fourth proportional to 207,498.80, 310,531.40 and 124,452.40 is: 186,248.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,498.80 : 310,531.40 = 124,452.40 : x
  2. Step 2: Convert to fraction form
    207,498.80/310,531.40 = 124,452.40/x
  3. Step 3: Cross multiply
    207,498.80x = 310,531.40 × 124,452.40
  4. Step 4: Simplify right side
    207,498.80x = 38,646,378,005.36
  5. Step 5: Solve for x
    x = 38,646,378,005.36/207,498.80
  6. Step 6: Final answer
    x = 186,248.68

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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.