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Finding the Fourth Proportional to 283,751.51, 391,737.47 and 188,388.59

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Solution

The fourth proportional to 283,751.51, 391,737.47 and 188,388.59 is: 260,082.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,751.51 : 391,737.47 = 188,388.59 : x
  2. Step 2: Convert to fraction form
    283,751.51/391,737.47 = 188,388.59/x
  3. Step 3: Cross multiply
    283,751.51x = 391,737.47 × 188,388.59
  4. Step 4: Simplify right side
    283,751.51x = 73,798,866,722.84
  5. Step 5: Solve for x
    x = 73,798,866,722.84/283,751.51
  6. Step 6: Final answer
    x = 260,082.73

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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.