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Finding the Fourth Proportional to 251,296.76, 346,792.20 and 136,575.40

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Solution

The fourth proportional to 251,296.76, 346,792.20 and 136,575.40 is: 188,475.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,296.76 : 346,792.20 = 136,575.40 : x
  2. Step 2: Convert to fraction form
    251,296.76/346,792.20 = 136,575.40/x
  3. Step 3: Cross multiply
    251,296.76x = 346,792.20 × 136,575.40
  4. Step 4: Simplify right side
    251,296.76x = 47,363,283,431.88
  5. Step 5: Solve for x
    x = 47,363,283,431.88/251,296.76
  6. Step 6: Final answer
    x = 188,475.50

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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.