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Finding the Fourth Proportional to 200,748.40, 301,079.40 and 88,428.40

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Solution

The fourth proportional to 200,748.40, 301,079.40 and 88,428.40 is: 132,623.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,748.40 : 301,079.40 = 88,428.40 : x
  2. Step 2: Convert to fraction form
    200,748.40/301,079.40 = 88,428.40/x
  3. Step 3: Cross multiply
    200,748.40x = 301,079.40 × 88,428.40
  4. Step 4: Simplify right side
    200,748.40x = 26,623,969,614.96
  5. Step 5: Solve for x
    x = 26,623,969,614.96/200,748.40
  6. Step 6: Final answer
    x = 132,623.57

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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.