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Finding the Fourth Proportional to 245,374.52, 368,065.02 and 87,612.44

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Solution

The fourth proportional to 245,374.52, 368,065.02 and 87,612.44 is: 131,419.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,374.52 : 368,065.02 = 87,612.44 : x
  2. Step 2: Convert to fraction form
    245,374.52/368,065.02 = 87,612.44/x
  3. Step 3: Cross multiply
    245,374.52x = 368,065.02 × 87,612.44
  4. Step 4: Simplify right side
    245,374.52x = 32,247,074,480.85
  5. Step 5: Solve for x
    x = 32,247,074,480.85/245,374.52
  6. Step 6: Final answer
    x = 131,419.82

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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.