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Finding the Fourth Proportional to 478,069.33, 716,936.89 and 141,020.52

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Solution

The fourth proportional to 478,069.33, 716,936.89 and 141,020.52 is: 211,481.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,069.33 : 716,936.89 = 141,020.52 : x
  2. Step 2: Convert to fraction form
    478,069.33/716,936.89 = 141,020.52/x
  3. Step 3: Cross multiply
    478,069.33x = 716,936.89 × 141,020.52
  4. Step 4: Simplify right side
    478,069.33x = 101,102,813,034.98
  5. Step 5: Solve for x
    x = 101,102,813,034.98/478,069.33
  6. Step 6: Final answer
    x = 211,481.49

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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.