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Finding the Fourth Proportional to 127,000.82, 175,263.11 and 69,645.38

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Solution

The fourth proportional to 127,000.82, 175,263.11 and 69,645.38 is: 96,111.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,000.82 : 175,263.11 = 69,645.38 : x
  2. Step 2: Convert to fraction form
    127,000.82/175,263.11 = 69,645.38/x
  3. Step 3: Cross multiply
    127,000.82x = 175,263.11 × 69,645.38
  4. Step 4: Simplify right side
    127,000.82x = 12,206,265,721.82
  5. Step 5: Solve for x
    x = 12,206,265,721.82/127,000.82
  6. Step 6: Final answer
    x = 96,111.71

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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.