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Finding the Fourth Proportional to 248,443.70, 372,665.55 and 130,151.30

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Solution

The fourth proportional to 248,443.70, 372,665.55 and 130,151.30 is: 195,226.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,443.70 : 372,665.55 = 130,151.30 : x
  2. Step 2: Convert to fraction form
    248,443.70/372,665.55 = 130,151.30/x
  3. Step 3: Cross multiply
    248,443.70x = 372,665.55 × 130,151.30
  4. Step 4: Simplify right side
    248,443.70x = 48,502,905,797.72
  5. Step 5: Solve for x
    x = 48,502,905,797.72/248,443.70
  6. Step 6: Final answer
    x = 195,226.95

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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.