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Finding the Fourth Proportional to 127,818.14, 176,391.14 and 71,229.51

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Solution

The fourth proportional to 127,818.14, 176,391.14 and 71,229.51 is: 98,297.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,818.14 : 176,391.14 = 71,229.51 : x
  2. Step 2: Convert to fraction form
    127,818.14/176,391.14 = 71,229.51/x
  3. Step 3: Cross multiply
    127,818.14x = 176,391.14 × 71,229.51
  4. Step 4: Simplify right side
    127,818.14x = 12,564,254,114.39
  5. Step 5: Solve for x
    x = 12,564,254,114.39/127,818.14
  6. Step 6: Final answer
    x = 98,297.90

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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.