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Finding the Fourth Proportional to 160,699.65, 221,781.42 and 89,093.52

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Solution

The fourth proportional to 160,699.65, 221,781.42 and 89,093.52 is: 122,957.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,699.65 : 221,781.42 = 89,093.52 : x
  2. Step 2: Convert to fraction form
    160,699.65/221,781.42 = 89,093.52/x
  3. Step 3: Cross multiply
    160,699.65x = 221,781.42 × 89,093.52
  4. Step 4: Simplify right side
    160,699.65x = 19,759,287,378.40
  5. Step 5: Solve for x
    x = 19,759,287,378.40/160,699.65
  6. Step 6: Final answer
    x = 122,957.87

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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.