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Finding the Fourth Proportional to 214,366.71, 321,269.75 and 87,858.84

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Solution

The fourth proportional to 214,366.71, 321,269.75 and 87,858.84 is: 131,673.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,366.71 : 321,269.75 = 87,858.84 : x
  2. Step 2: Convert to fraction form
    214,366.71/321,269.75 = 87,858.84/x
  3. Step 3: Cross multiply
    214,366.71x = 321,269.75 × 87,858.84
  4. Step 4: Simplify right side
    214,366.71x = 28,226,385,955.74
  5. Step 5: Solve for x
    x = 28,226,385,955.74/214,366.71
  6. Step 6: Final answer
    x = 131,673.37

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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.