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Finding the Fourth Proportional to 192,737.78, 265,973.92 and 105,522.70

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Solution

The fourth proportional to 192,737.78, 265,973.92 and 105,522.70 is: 145,619.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,737.78 : 265,973.92 = 105,522.70 : x
  2. Step 2: Convert to fraction form
    192,737.78/265,973.92 = 105,522.70/x
  3. Step 3: Cross multiply
    192,737.78x = 265,973.92 × 105,522.70
  4. Step 4: Simplify right side
    192,737.78x = 28,066,286,167.98
  5. Step 5: Solve for x
    x = 28,066,286,167.98/192,737.78
  6. Step 6: Final answer
    x = 145,619.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.