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Finding the Fourth Proportional to 104,182.44, 143,742.59 and 65,424.44

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Solution

The fourth proportional to 104,182.44, 143,742.59 and 65,424.44 is: 90,267.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,182.44 : 143,742.59 = 65,424.44 : x
  2. Step 2: Convert to fraction form
    104,182.44/143,742.59 = 65,424.44/x
  3. Step 3: Cross multiply
    104,182.44x = 143,742.59 × 65,424.44
  4. Step 4: Simplify right side
    104,182.44x = 9,404,278,454.90
  5. Step 5: Solve for x
    x = 9,404,278,454.90/104,182.44
  6. Step 6: Final answer
    x = 90,267.40

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1.5x scale

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.