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Finding the Fourth Proportional to 248,639.70, 372,959.55 and 61,651.20

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Solution

The fourth proportional to 248,639.70, 372,959.55 and 61,651.20 is: 92,476.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,639.70 : 372,959.55 = 61,651.20 : x
  2. Step 2: Convert to fraction form
    248,639.70/372,959.55 = 61,651.20/x
  3. Step 3: Cross multiply
    248,639.70x = 372,959.55 × 61,651.20
  4. Step 4: Simplify right side
    248,639.70x = 22,993,403,808.96
  5. Step 5: Solve for x
    x = 22,993,403,808.96/248,639.70
  6. Step 6: Final answer
    x = 92,476.80

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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.