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Finding the Fourth Proportional to 269,843.04, 372,355.12 and 156,643.68

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Solution

The fourth proportional to 269,843.04, 372,355.12 and 156,643.68 is: 216,151.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,843.04 : 372,355.12 = 156,643.68 : x
  2. Step 2: Convert to fraction form
    269,843.04/372,355.12 = 156,643.68/x
  3. Step 3: Cross multiply
    269,843.04x = 372,355.12 × 156,643.68
  4. Step 4: Simplify right side
    269,843.04x = 58,327,076,263.64
  5. Step 5: Solve for x
    x = 58,327,076,263.64/269,843.04
  6. Step 6: Final answer
    x = 216,151.86

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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.