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Finding the Fourth Proportional to 282,628.68, 423,627.30 and 122,519.82

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Solution

The fourth proportional to 282,628.68, 423,627.30 and 122,519.82 is: 183,642.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,628.68 : 423,627.30 = 122,519.82 : x
  2. Step 2: Convert to fraction form
    282,628.68/423,627.30 = 122,519.82/x
  3. Step 3: Cross multiply
    282,628.68x = 423,627.30 × 122,519.82
  4. Step 4: Simplify right side
    282,628.68x = 51,902,740,543.09
  5. Step 5: Solve for x
    x = 51,902,740,543.09/282,628.68
  6. Step 6: Final answer
    x = 183,642.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.