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Finding the Fourth Proportional to 248,411.10, 372,616.65 and 61,422.60

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Solution

The fourth proportional to 248,411.10, 372,616.65 and 61,422.60 is: 92,133.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,411.10 : 372,616.65 = 61,422.60 : x
  2. Step 2: Convert to fraction form
    248,411.10/372,616.65 = 61,422.60/x
  3. Step 3: Cross multiply
    248,411.10x = 372,616.65 × 61,422.60
  4. Step 4: Simplify right side
    248,411.10x = 22,887,083,446.29
  5. Step 5: Solve for x
    x = 22,887,083,446.29/248,411.10
  6. Step 6: Final answer
    x = 92,133.90

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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.