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Finding the Fourth Proportional to 90,339, 124,667.82 and 50,595

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Solution

The fourth proportional to 90,339, 124,667.82 and 50,595 is: 69,821.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,339 : 124,667.82 = 50,595 : x
  2. Step 2: Convert to fraction form
    90,339/124,667.82 = 50,595/x
  3. Step 3: Cross multiply
    90,339x = 124,667.82 × 50,595
  4. Step 4: Simplify right side
    90,339x = 6,307,568,352.90
  5. Step 5: Solve for x
    x = 6,307,568,352.90/90,339
  6. Step 6: Final answer
    x = 69,821.10

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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.