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Finding the Fourth Proportional to 192,792.72, 288,686.07 and 155,147.16

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Solution

The fourth proportional to 192,792.72, 288,686.07 and 155,147.16 is: 232,315.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,792.72 : 288,686.07 = 155,147.16 : x
  2. Step 2: Convert to fraction form
    192,792.72/288,686.07 = 155,147.16/x
  3. Step 3: Cross multiply
    192,792.72x = 288,686.07 × 155,147.16
  4. Step 4: Simplify right side
    192,792.72x = 44,788,823,892.06
  5. Step 5: Solve for x
    x = 44,788,823,892.06/192,792.72
  6. Step 6: Final answer
    x = 232,315.95

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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.