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Finding the Fourth Proportional to 160,612.80, 221,642.56 and 88,992.48

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Solution

The fourth proportional to 160,612.80, 221,642.56 and 88,992.48 is: 122,807.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,612.80 : 221,642.56 = 88,992.48 : x
  2. Step 2: Convert to fraction form
    160,612.80/221,642.56 = 88,992.48/x
  3. Step 3: Cross multiply
    160,612.80x = 221,642.56 × 88,992.48
  4. Step 4: Simplify right side
    160,612.80x = 19,724,521,087.95
  5. Step 5: Solve for x
    x = 19,724,521,087.95/160,612.80
  6. Step 6: Final answer
    x = 122,807.90

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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.