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Finding the Fourth Proportional to 251,061.87, 346,464.18 and 136,339.59

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Solution

The fourth proportional to 251,061.87, 346,464.18 and 136,339.59 is: 188,147.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,061.87 : 346,464.18 = 136,339.59 : x
  2. Step 2: Convert to fraction form
    251,061.87/346,464.18 = 136,339.59/x
  3. Step 3: Cross multiply
    251,061.87x = 346,464.18 × 136,339.59
  4. Step 4: Simplify right side
    251,061.87x = 47,236,784,250.89
  5. Step 5: Solve for x
    x = 47,236,784,250.89/251,061.87
  6. Step 6: Final answer
    x = 188,147.98

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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.