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Finding the Fourth Proportional to 200,586.90, 300,837.15 and 88,266.90

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Solution

The fourth proportional to 200,586.90, 300,837.15 and 88,266.90 is: 132,381.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,586.90 : 300,837.15 = 88,266.90 : x
  2. Step 2: Convert to fraction form
    200,586.90/300,837.15 = 88,266.90/x
  3. Step 3: Cross multiply
    200,586.90x = 300,837.15 × 88,266.90
  4. Step 4: Simplify right side
    200,586.90x = 26,553,962,635.34
  5. Step 5: Solve for x
    x = 26,553,962,635.34/200,586.90
  6. Step 6: Final answer
    x = 132,381.34

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1.5x scale

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.