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Finding the Fourth Proportional to 202,443.44, 279,406.13 and 117,609.71

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Solution

The fourth proportional to 202,443.44, 279,406.13 and 117,609.71 is: 162,321.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,443.44 : 279,406.13 = 117,609.71 : x
  2. Step 2: Convert to fraction form
    202,443.44/279,406.13 = 117,609.71/x
  3. Step 3: Cross multiply
    202,443.44x = 279,406.13 × 117,609.71
  4. Step 4: Simplify right side
    202,443.44x = 32,860,871,936.44
  5. Step 5: Solve for x
    x = 32,860,871,936.44/202,443.44
  6. Step 6: Final answer
    x = 162,321.25

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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.