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Finding the Fourth Proportional to 160,490.68, 221,474.40 and 88,869.16

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Solution

The fourth proportional to 160,490.68, 221,474.40 and 88,869.16 is: 122,637.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,490.68 : 221,474.40 = 88,869.16 : x
  2. Step 2: Convert to fraction form
    160,490.68/221,474.40 = 88,869.16/x
  3. Step 3: Cross multiply
    160,490.68x = 221,474.40 × 88,869.16
  4. Step 4: Simplify right side
    160,490.68x = 19,682,243,335.82
  5. Step 5: Solve for x
    x = 19,682,243,335.82/160,490.68
  6. Step 6: Final answer
    x = 122,637.92

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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.