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Finding the Fourth Proportional to 160,486.62, 221,468.82 and 88,865.10

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Solution

The fourth proportional to 160,486.62, 221,468.82 and 88,865.10 is: 122,632.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,486.62 : 221,468.82 = 88,865.10 : x
  2. Step 2: Convert to fraction form
    160,486.62/221,468.82 = 88,865.10/x
  3. Step 3: Cross multiply
    160,486.62x = 221,468.82 × 88,865.10
  4. Step 4: Simplify right side
    160,486.62x = 19,680,849,252.74
  5. Step 5: Solve for x
    x = 19,680,849,252.74/160,486.62
  6. Step 6: Final answer
    x = 122,632.34

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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.