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Finding the Fourth Proportional to 296,792.55, 445,184.78 and 72,152.42

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Solution

The fourth proportional to 296,792.55, 445,184.78 and 72,152.42 is: 108,227.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,792.55 : 445,184.78 = 72,152.42 : x
  2. Step 2: Convert to fraction form
    296,792.55/445,184.78 = 72,152.42/x
  3. Step 3: Cross multiply
    296,792.55x = 445,184.78 × 72,152.42
  4. Step 4: Simplify right side
    296,792.55x = 32,121,156,637.48
  5. Step 5: Solve for x
    x = 32,121,156,637.48/296,792.55
  6. Step 6: Final answer
    x = 108,227.64

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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.