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Finding the Fourth Proportional to 95,765.53, 143,434.41 and 69,409.75

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Solution

The fourth proportional to 95,765.53, 143,434.41 and 69,409.75 is: 103,959.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,765.53 : 143,434.41 = 69,409.75 : x
  2. Step 2: Convert to fraction form
    95,765.53/143,434.41 = 69,409.75/x
  3. Step 3: Cross multiply
    95,765.53x = 143,434.41 × 69,409.75
  4. Step 4: Simplify right side
    95,765.53x = 9,955,746,539.50
  5. Step 5: Solve for x
    x = 9,955,746,539.50/95,765.53
  6. Step 6: Final answer
    x = 103,959.60

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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.