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Finding the Fourth Proportional to 508,351.67, 762,520.21 and 124,105.49

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Solution

The fourth proportional to 508,351.67, 762,520.21 and 124,105.49 is: 186,156.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,351.67 : 762,520.21 = 124,105.49 : x
  2. Step 2: Convert to fraction form
    508,351.67/762,520.21 = 124,105.49/x
  3. Step 3: Cross multiply
    508,351.67x = 762,520.21 × 124,105.49
  4. Step 4: Simplify right side
    508,351.67x = 94,632,944,296.95
  5. Step 5: Solve for x
    x = 94,632,944,296.95/508,351.67
  6. Step 6: Final answer
    x = 186,156.45

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1.5x scale

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.