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Finding the Fourth Proportional to 158,155.65, 236,971.02 and 111,310.11

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Solution

The fourth proportional to 158,155.65, 236,971.02 and 111,310.11 is: 166,780.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,155.65 : 236,971.02 = 111,310.11 : x
  2. Step 2: Convert to fraction form
    158,155.65/236,971.02 = 111,310.11/x
  3. Step 3: Cross multiply
    158,155.65x = 236,971.02 × 111,310.11
  4. Step 4: Simplify right side
    158,155.65x = 26,377,270,720.43
  5. Step 5: Solve for x
    x = 26,377,270,720.43/158,155.65
  6. Step 6: Final answer
    x = 166,780.45

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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.