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Finding the Fourth Proportional to 160,614.78, 221,647.68 and 88,994.63

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Solution

The fourth proportional to 160,614.78, 221,647.68 and 88,994.63 is: 122,812.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,614.78 : 221,647.68 = 88,994.63 : x
  2. Step 2: Convert to fraction form
    160,614.78/221,647.68 = 88,994.63/x
  3. Step 3: Cross multiply
    160,614.78x = 221,647.68 × 88,994.63
  4. Step 4: Simplify right side
    160,614.78x = 19,725,452,163.72
  5. Step 5: Solve for x
    x = 19,725,452,163.72/160,614.78
  6. Step 6: Final answer
    x = 122,812.19

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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.