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Finding the Fourth Proportional to 107,443.64, 161,109.84 and 48,228.32

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Solution

The fourth proportional to 107,443.64, 161,109.84 and 48,228.32 is: 72,317.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,443.64 : 161,109.84 = 48,228.32 : x
  2. Step 2: Convert to fraction form
    107,443.64/161,109.84 = 48,228.32/x
  3. Step 3: Cross multiply
    107,443.64x = 161,109.84 × 48,228.32
  4. Step 4: Simplify right side
    107,443.64x = 7,770,056,918.67
  5. Step 5: Solve for x
    x = 7,770,056,918.67/107,443.64
  6. Step 6: Final answer
    x = 72,317.51

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1.5x scale

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.