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Finding the Fourth Proportional to 75,529, 104,230.20 and 42,001.48

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Solution

The fourth proportional to 75,529, 104,230.20 and 42,001.48 is: 57,962.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,529 : 104,230.20 = 42,001.48 : x
  2. Step 2: Convert to fraction form
    75,529/104,230.20 = 42,001.48/x
  3. Step 3: Cross multiply
    75,529x = 104,230.20 × 42,001.48
  4. Step 4: Simplify right side
    75,529x = 4,377,822,660.70
  5. Step 5: Solve for x
    x = 4,377,822,660.70/75,529
  6. Step 6: Final answer
    x = 57,962.14

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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.