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Finding the Fourth Proportional to 192,666.84, 289,024.88 and 74,372.01

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Solution

The fourth proportional to 192,666.84, 289,024.88 and 74,372.01 is: 111,567.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,666.84 : 289,024.88 = 74,372.01 : x
  2. Step 2: Convert to fraction form
    192,666.84/289,024.88 = 74,372.01/x
  3. Step 3: Cross multiply
    192,666.84x = 289,024.88 × 74,372.01
  4. Step 4: Simplify right side
    192,666.84x = 21,495,361,265.61
  5. Step 5: Solve for x
    x = 21,495,361,265.61/192,666.84
  6. Step 6: Final answer
    x = 111,567.52

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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.