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Finding the Fourth Proportional to 127,344.30, 191,016.45 and 97,819.80

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Solution

The fourth proportional to 127,344.30, 191,016.45 and 97,819.80 is: 146,729.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,344.30 : 191,016.45 = 97,819.80 : x
  2. Step 2: Convert to fraction form
    127,344.30/191,016.45 = 97,819.80/x
  3. Step 3: Cross multiply
    127,344.30x = 191,016.45 × 97,819.80
  4. Step 4: Simplify right side
    127,344.30x = 18,685,190,935.71
  5. Step 5: Solve for x
    x = 18,685,190,935.71/127,344.30
  6. Step 6: Final answer
    x = 146,729.70

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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.