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Finding the Fourth Proportional to 68,039.55, 101,867.63 and 51,346.53

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Solution

The fourth proportional to 68,039.55, 101,867.63 and 51,346.53 is: 76,875.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,039.55 : 101,867.63 = 51,346.53 : x
  2. Step 2: Convert to fraction form
    68,039.55/101,867.63 = 51,346.53/x
  3. Step 3: Cross multiply
    68,039.55x = 101,867.63 × 51,346.53
  4. Step 4: Simplify right side
    68,039.55x = 5,230,549,063.09
  5. Step 5: Solve for x
    x = 5,230,549,063.09/68,039.55
  6. Step 6: Final answer
    x = 76,875.13

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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.