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Finding the Fourth Proportional to 250,657.08, 375,979.95 and 61,118.43

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Solution

The fourth proportional to 250,657.08, 375,979.95 and 61,118.43 is: 91,676.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,657.08 : 375,979.95 = 61,118.43 : x
  2. Step 2: Convert to fraction form
    250,657.08/375,979.95 = 61,118.43/x
  3. Step 3: Cross multiply
    250,657.08x = 375,979.95 × 61,118.43
  4. Step 4: Simplify right side
    250,657.08x = 22,979,304,255.48
  5. Step 5: Solve for x
    x = 22,979,304,255.48/250,657.08
  6. Step 6: Final answer
    x = 91,676.26

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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.