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Finding the Fourth Proportional to 126,653.80, 174,930.96 and 101,248.15

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Solution

The fourth proportional to 126,653.80, 174,930.96 and 101,248.15 is: 139,841.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,653.80 : 174,930.96 = 101,248.15 : x
  2. Step 2: Convert to fraction form
    126,653.80/174,930.96 = 101,248.15/x
  3. Step 3: Cross multiply
    126,653.80x = 174,930.96 × 101,248.15
  4. Step 4: Simplify right side
    126,653.80x = 17,711,436,077.72
  5. Step 5: Solve for x
    x = 17,711,436,077.72/126,653.80
  6. Step 6: Final answer
    x = 139,841.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.