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Finding the Fourth Proportional to 127,509.73, 175,959.90 and 69,364.54

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Solution

The fourth proportional to 127,509.73, 175,959.90 and 69,364.54 is: 95,721.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,509.73 : 175,959.90 = 69,364.54 : x
  2. Step 2: Convert to fraction form
    127,509.73/175,959.90 = 69,364.54/x
  3. Step 3: Cross multiply
    127,509.73x = 175,959.90 × 69,364.54
  4. Step 4: Simplify right side
    127,509.73x = 12,205,377,348.53
  5. Step 5: Solve for x
    x = 12,205,377,348.53/127,509.73
  6. Step 6: Final answer
    x = 95,721.14

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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.