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Finding the Fourth Proportional to 341,405.55, 512,108.33 and 163,821.15

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Solution

The fourth proportional to 341,405.55, 512,108.33 and 163,821.15 is: 245,731.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,405.55 : 512,108.33 = 163,821.15 : x
  2. Step 2: Convert to fraction form
    341,405.55/512,108.33 = 163,821.15/x
  3. Step 3: Cross multiply
    341,405.55x = 512,108.33 × 163,821.15
  4. Step 4: Simplify right side
    341,405.55x = 83,894,174,726.07
  5. Step 5: Solve for x
    x = 83,894,174,726.07/341,405.55
  6. Step 6: Final answer
    x = 245,731.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.