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Finding the Fourth Proportional to 95,459.26, 143,035.80 and 69,178.81

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Solution

The fourth proportional to 95,459.26, 143,035.80 and 69,178.81 is: 103,657.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,459.26 : 143,035.80 = 69,178.81 : x
  2. Step 2: Convert to fraction form
    95,459.26/143,035.80 = 69,178.81/x
  3. Step 3: Cross multiply
    95,459.26x = 143,035.80 × 69,178.81
  4. Step 4: Simplify right side
    95,459.26x = 9,895,046,431.40
  5. Step 5: Solve for x
    x = 9,895,046,431.40/95,459.26
  6. Step 6: Final answer
    x = 103,657.27

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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.