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Finding the Fourth Proportional to 185,279.12, 277,780.44 and 86,760.08

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Solution

The fourth proportional to 185,279.12, 277,780.44 and 86,760.08 is: 130,075.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,279.12 : 277,780.44 = 86,760.08 : x
  2. Step 2: Convert to fraction form
    185,279.12/277,780.44 = 86,760.08/x
  3. Step 3: Cross multiply
    185,279.12x = 277,780.44 × 86,760.08
  4. Step 4: Simplify right side
    185,279.12x = 24,100,253,196.84
  5. Step 5: Solve for x
    x = 24,100,253,196.84/185,279.12
  6. Step 6: Final answer
    x = 130,075.39

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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.