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Finding the Fourth Proportional to 207,060.67, 310,544.82 and 80,704.32

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Solution

The fourth proportional to 207,060.67, 310,544.82 and 80,704.32 is: 121,038.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,060.67 : 310,544.82 = 80,704.32 : x
  2. Step 2: Convert to fraction form
    207,060.67/310,544.82 = 80,704.32/x
  3. Step 3: Cross multiply
    207,060.67x = 310,544.82 × 80,704.32
  4. Step 4: Simplify right side
    207,060.67x = 25,062,307,363.08
  5. Step 5: Solve for x
    x = 25,062,307,363.08/207,060.67
  6. Step 6: Final answer
    x = 121,038.47

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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.