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Finding the Fourth Proportional to 269,978.58, 372,616.11 and 156,866.94

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Solution

The fourth proportional to 269,978.58, 372,616.11 and 156,866.94 is: 216,502.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,978.58 : 372,616.11 = 156,866.94 : x
  2. Step 2: Convert to fraction form
    269,978.58/372,616.11 = 156,866.94/x
  3. Step 3: Cross multiply
    269,978.58x = 372,616.11 × 156,866.94
  4. Step 4: Simplify right side
    269,978.58x = 58,451,148,970.40
  5. Step 5: Solve for x
    x = 58,451,148,970.40/269,978.58
  6. Step 6: Final answer
    x = 216,502.91

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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.