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Finding the Fourth Proportional to 214,574.59, 321,807.67 and 79,564.46

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Solution

The fourth proportional to 214,574.59, 321,807.67 and 79,564.46 is: 119,326.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,574.59 : 321,807.67 = 79,564.46 : x
  2. Step 2: Convert to fraction form
    214,574.59/321,807.67 = 79,564.46/x
  3. Step 3: Cross multiply
    214,574.59x = 321,807.67 × 79,564.46
  4. Step 4: Simplify right side
    214,574.59x = 25,604,453,489.63
  5. Step 5: Solve for x
    x = 25,604,453,489.63/214,574.59
  6. Step 6: Final answer
    x = 119,326.59

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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.