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Finding the Fourth Proportional to 117,284.45, 161,851.61 and 63,568.08

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Solution

The fourth proportional to 117,284.45, 161,851.61 and 63,568.08 is: 87,723.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,284.45 : 161,851.61 = 63,568.08 : x
  2. Step 2: Convert to fraction form
    117,284.45/161,851.61 = 63,568.08/x
  3. Step 3: Cross multiply
    117,284.45x = 161,851.61 × 63,568.08
  4. Step 4: Simplify right side
    117,284.45x = 10,288,595,774.77
  5. Step 5: Solve for x
    x = 10,288,595,774.77/117,284.45
  6. Step 6: Final answer
    x = 87,723.45

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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.