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Finding the Fourth Proportional to 103,804.56, 143,260.89 and 63,544.92

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Solution

The fourth proportional to 103,804.56, 143,260.89 and 63,544.92 is: 87,698.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,804.56 : 143,260.89 = 63,544.92 : x
  2. Step 2: Convert to fraction form
    103,804.56/143,260.89 = 63,544.92/x
  3. Step 3: Cross multiply
    103,804.56x = 143,260.89 × 63,544.92
  4. Step 4: Simplify right side
    103,804.56x = 9,103,501,794.18
  5. Step 5: Solve for x
    x = 9,103,501,794.18/103,804.56
  6. Step 6: Final answer
    x = 87,698.48

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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.