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Finding the Fourth Proportional to 192,571.17, 265,740.39 and 105,354.87

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Solution

The fourth proportional to 192,571.17, 265,740.39 and 105,354.87 is: 145,385.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,571.17 : 265,740.39 = 105,354.87 : x
  2. Step 2: Convert to fraction form
    192,571.17/265,740.39 = 105,354.87/x
  3. Step 3: Cross multiply
    192,571.17x = 265,740.39 × 105,354.87
  4. Step 4: Simplify right side
    192,571.17x = 27,997,044,242.20
  5. Step 5: Solve for x
    x = 27,997,044,242.20/192,571.17
  6. Step 6: Final answer
    x = 145,385.44

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1.5x scale

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.