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Finding the Fourth Proportional to 248,459.88, 342,905.49 and 141,064.68

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Solution

The fourth proportional to 248,459.88, 342,905.49 and 141,064.68 is: 194,686.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,459.88 : 342,905.49 = 141,064.68 : x
  2. Step 2: Convert to fraction form
    248,459.88/342,905.49 = 141,064.68/x
  3. Step 3: Cross multiply
    248,459.88x = 342,905.49 × 141,064.68
  4. Step 4: Simplify right side
    248,459.88x = 48,371,853,217.09
  5. Step 5: Solve for x
    x = 48,371,853,217.09/248,459.88
  6. Step 6: Final answer
    x = 194,686.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.