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Finding the Fourth Proportional to 160,551.66, 221,561.31 and 88,936.32

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Solution

The fourth proportional to 160,551.66, 221,561.31 and 88,936.32 is: 122,732.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,551.66 : 221,561.31 = 88,936.32 : x
  2. Step 2: Convert to fraction form
    160,551.66/221,561.31 = 88,936.32/x
  3. Step 3: Cross multiply
    160,551.66x = 221,561.31 × 88,936.32
  4. Step 4: Simplify right side
    160,551.66x = 19,704,847,565.78
  5. Step 5: Solve for x
    x = 19,704,847,565.78/160,551.66
  6. Step 6: Final answer
    x = 122,732.13

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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.