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Finding the Fourth Proportional to 160,798.70, 221,894.75 and 89,177.18

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Solution

The fourth proportional to 160,798.70, 221,894.75 and 89,177.18 is: 123,060.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,798.70 : 221,894.75 = 89,177.18 : x
  2. Step 2: Convert to fraction form
    160,798.70/221,894.75 = 89,177.18/x
  3. Step 3: Cross multiply
    160,798.70x = 221,894.75 × 89,177.18
  4. Step 4: Simplify right side
    160,798.70x = 19,787,947,175.27
  5. Step 5: Solve for x
    x = 19,787,947,175.27/160,798.70
  6. Step 6: Final answer
    x = 123,060.37

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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.