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Finding the Fourth Proportional to 158,778.93, 238,241.16 and 68,849.22

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Solution

The fourth proportional to 158,778.93, 238,241.16 and 68,849.22 is: 103,305.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,778.93 : 238,241.16 = 68,849.22 : x
  2. Step 2: Convert to fraction form
    158,778.93/238,241.16 = 68,849.22/x
  3. Step 3: Cross multiply
    158,778.93x = 238,241.16 × 68,849.22
  4. Step 4: Simplify right side
    158,778.93x = 16,402,718,037.90
  5. Step 5: Solve for x
    x = 16,402,718,037.90/158,778.93
  6. Step 6: Final answer
    x = 103,305.38

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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.