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Finding the Fourth Proportional to 207,600.90, 311,547.15 and 132,902.70

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Solution

The fourth proportional to 207,600.90, 311,547.15 and 132,902.70 is: 199,447.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,600.90 : 311,547.15 = 132,902.70 : x
  2. Step 2: Convert to fraction form
    207,600.90/311,547.15 = 132,902.70/x
  3. Step 3: Cross multiply
    207,600.90x = 311,547.15 × 132,902.70
  4. Step 4: Simplify right side
    207,600.90x = 41,405,457,412.31
  5. Step 5: Solve for x
    x = 41,405,457,412.31/207,600.90
  6. Step 6: Final answer
    x = 199,447.39

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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.