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Finding the Fourth Proportional to 220,510.64, 304,476.10 and 169,442.88

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Solution

The fourth proportional to 220,510.64, 304,476.10 and 169,442.88 is: 233,962.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,510.64 : 304,476.10 = 169,442.88 : x
  2. Step 2: Convert to fraction form
    220,510.64/304,476.10 = 169,442.88/x
  3. Step 3: Cross multiply
    220,510.64x = 304,476.10 × 169,442.88
  4. Step 4: Simplify right side
    220,510.64x = 51,591,305,709.78
  5. Step 5: Solve for x
    x = 51,591,305,709.78/220,510.64
  6. Step 6: Final answer
    x = 233,962.88

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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.