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Finding the Fourth Proportional to 127,434.97, 175,864.77 and 70,078.67

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Solution

The fourth proportional to 127,434.97, 175,864.77 and 70,078.67 is: 96,711.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,434.97 : 175,864.77 = 70,078.67 : x
  2. Step 2: Convert to fraction form
    127,434.97/175,864.77 = 70,078.67/x
  3. Step 3: Cross multiply
    127,434.97x = 175,864.77 × 70,078.67
  4. Step 4: Simplify right side
    127,434.97x = 12,324,368,961.62
  5. Step 5: Solve for x
    x = 12,324,368,961.62/127,434.97
  6. Step 6: Final answer
    x = 96,711.04

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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.