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Finding the Fourth Proportional to 100,624.86, 138,812.22 and 60,329.37

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Solution

The fourth proportional to 100,624.86, 138,812.22 and 60,329.37 is: 83,224.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,624.86 : 138,812.22 = 60,329.37 : x
  2. Step 2: Convert to fraction form
    100,624.86/138,812.22 = 60,329.37/x
  3. Step 3: Cross multiply
    100,624.86x = 138,812.22 × 60,329.37
  4. Step 4: Simplify right side
    100,624.86x = 8,374,453,780.90
  5. Step 5: Solve for x
    x = 8,374,453,780.90/100,624.86
  6. Step 6: Final answer
    x = 83,224.50

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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.