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Finding the Fourth Proportional to 296,432.79, 444,647.67 and 71,793.21

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Solution

The fourth proportional to 296,432.79, 444,647.67 and 71,793.21 is: 107,689.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,432.79 : 444,647.67 = 71,793.21 : x
  2. Step 2: Convert to fraction form
    296,432.79/444,647.67 = 71,793.21/x
  3. Step 3: Cross multiply
    296,432.79x = 444,647.67 × 71,793.21
  4. Step 4: Simplify right side
    296,432.79x = 31,922,683,548.32
  5. Step 5: Solve for x
    x = 31,922,683,548.32/296,432.79
  6. Step 6: Final answer
    x = 107,689.45

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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.