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Finding the Fourth Proportional to 67,710.68, 101,590.38 and 30,267.68

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Solution

The fourth proportional to 67,710.68, 101,590.38 and 30,267.68 is: 45,412.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,710.68 : 101,590.38 = 30,267.68 : x
  2. Step 2: Convert to fraction form
    67,710.68/101,590.38 = 30,267.68/x
  3. Step 3: Cross multiply
    67,710.68x = 101,590.38 × 30,267.68
  4. Step 4: Simplify right side
    67,710.68x = 3,074,905,112.92
  5. Step 5: Solve for x
    x = 3,074,905,112.92/67,710.68
  6. Step 6: Final answer
    x = 45,412.41

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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.