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Finding the Fourth Proportional to 214,600.07, 321,957.51 and 74,358.69

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Solution

The fourth proportional to 214,600.07, 321,957.51 and 74,358.69 is: 111,557.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,600.07 : 321,957.51 = 74,358.69 : x
  2. Step 2: Convert to fraction form
    214,600.07/321,957.51 = 74,358.69/x
  3. Step 3: Cross multiply
    214,600.07x = 321,957.51 × 74,358.69
  4. Step 4: Simplify right side
    214,600.07x = 23,940,338,307.47
  5. Step 5: Solve for x
    x = 23,940,338,307.47/214,600.07
  6. Step 6: Final answer
    x = 111,557.93

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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.