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Finding the Fourth Proportional to 185,424.80, 278,072.40 and 96,648.80

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Solution

The fourth proportional to 185,424.80, 278,072.40 and 96,648.80 is: 144,939.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,424.80 : 278,072.40 = 96,648.80 : x
  2. Step 2: Convert to fraction form
    185,424.80/278,072.40 = 96,648.80/x
  3. Step 3: Cross multiply
    185,424.80x = 278,072.40 × 96,648.80
  4. Step 4: Simplify right side
    185,424.80x = 26,875,363,773.12
  5. Step 5: Solve for x
    x = 26,875,363,773.12/185,424.80
  6. Step 6: Final answer
    x = 144,939.42

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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.