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Finding the Fourth Proportional to 68,756.13, 103,160.37 and 35,454.93

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Solution

The fourth proportional to 68,756.13, 103,160.37 and 35,454.93 is: 53,195.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,756.13 : 103,160.37 = 35,454.93 : x
  2. Step 2: Convert to fraction form
    68,756.13/103,160.37 = 35,454.93/x
  3. Step 3: Cross multiply
    68,756.13x = 103,160.37 × 35,454.93
  4. Step 4: Simplify right side
    68,756.13x = 3,657,543,697.12
  5. Step 5: Solve for x
    x = 3,657,543,697.12/68,756.13
  6. Step 6: Final answer
    x = 53,195.89

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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.