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Finding the Fourth Proportional to 251,294.56, 346,780.62 and 136,570.48

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Solution

The fourth proportional to 251,294.56, 346,780.62 and 136,570.48 is: 188,464.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,294.56 : 346,780.62 = 136,570.48 : x
  2. Step 2: Convert to fraction form
    251,294.56/346,780.62 = 136,570.48/x
  3. Step 3: Cross multiply
    251,294.56x = 346,780.62 × 136,570.48
  4. Step 4: Simplify right side
    251,294.56x = 47,359,995,728.10
  5. Step 5: Solve for x
    x = 47,359,995,728.10/251,294.56
  6. Step 6: Final answer
    x = 188,464.07

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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.