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Finding the Fourth Proportional to 250,803.84, 346,109.30 and 137,633.88

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Solution

The fourth proportional to 250,803.84, 346,109.30 and 137,633.88 is: 189,934.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,803.84 : 346,109.30 = 137,633.88 : x
  2. Step 2: Convert to fraction form
    250,803.84/346,109.30 = 137,633.88/x
  3. Step 3: Cross multiply
    250,803.84x = 346,109.30 × 137,633.88
  4. Step 4: Simplify right side
    250,803.84x = 47,636,367,763.14
  5. Step 5: Solve for x
    x = 47,636,367,763.14/250,803.84
  6. Step 6: Final answer
    x = 189,934.76

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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.