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Finding the Fourth Proportional to 214,595.06, 321,857.72 and 88,209.72

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Solution

The fourth proportional to 214,595.06, 321,857.72 and 88,209.72 is: 132,300.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,595.06 : 321,857.72 = 88,209.72 : x
  2. Step 2: Convert to fraction form
    214,595.06/321,857.72 = 88,209.72/x
  3. Step 3: Cross multiply
    214,595.06x = 321,857.72 × 88,209.72
  4. Step 4: Simplify right side
    214,595.06x = 28,390,979,361.04
  5. Step 5: Solve for x
    x = 28,390,979,361.04/214,595.06
  6. Step 6: Final answer
    x = 132,300.25

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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.