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Finding the Fourth Proportional to 251,103.68, 346,525.59 and 136,384.59

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Solution

The fourth proportional to 251,103.68, 346,525.59 and 136,384.59 is: 188,212.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,103.68 : 346,525.59 = 136,384.59 : x
  2. Step 2: Convert to fraction form
    251,103.68/346,525.59 = 136,384.59/x
  3. Step 3: Cross multiply
    251,103.68x = 346,525.59 × 136,384.59
  4. Step 4: Simplify right side
    251,103.68x = 47,260,749,834.74
  5. Step 5: Solve for x
    x = 47,260,749,834.74/251,103.68
  6. Step 6: Final answer
    x = 188,212.10

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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.