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Finding the Fourth Proportional to 160,637.52, 221,678.01 and 88,041

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Solution

The fourth proportional to 160,637.52, 221,678.01 and 88,041 is: 121,495.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,637.52 : 221,678.01 = 88,041 : x
  2. Step 2: Convert to fraction form
    160,637.52/221,678.01 = 88,041/x
  3. Step 3: Cross multiply
    160,637.52x = 221,678.01 × 88,041
  4. Step 4: Simplify right side
    160,637.52x = 19,516,753,678.41
  5. Step 5: Solve for x
    x = 19,516,753,678.41/160,637.52
  6. Step 6: Final answer
    x = 121,495.61

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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.