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Finding the Fourth Proportional to 135,279.90, 202,952.88 and 95,376.78

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Solution

The fourth proportional to 135,279.90, 202,952.88 and 95,376.78 is: 143,088.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,279.90 : 202,952.88 = 95,376.78 : x
  2. Step 2: Convert to fraction form
    135,279.90/202,952.88 = 95,376.78/x
  3. Step 3: Cross multiply
    135,279.90x = 202,952.88 × 95,376.78
  4. Step 4: Simplify right side
    135,279.90x = 19,356,992,186.13
  5. Step 5: Solve for x
    x = 19,356,992,186.13/135,279.90
  6. Step 6: Final answer
    x = 143,088.46

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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.