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Finding the Fourth Proportional to 127,537.40, 191,306.10 and 107,854.40

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Solution

The fourth proportional to 127,537.40, 191,306.10 and 107,854.40 is: 161,781.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,537.40 : 191,306.10 = 107,854.40 : x
  2. Step 2: Convert to fraction form
    127,537.40/191,306.10 = 107,854.40/x
  3. Step 3: Cross multiply
    127,537.40x = 191,306.10 × 107,854.40
  4. Step 4: Simplify right side
    127,537.40x = 20,633,204,631.84
  5. Step 5: Solve for x
    x = 20,633,204,631.84/127,537.40
  6. Step 6: Final answer
    x = 161,781.60

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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.