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Finding the Fourth Proportional to 63,858.40, 88,121.12 and 35,172.47

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Solution

The fourth proportional to 63,858.40, 88,121.12 and 35,172.47 is: 48,536.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,858.40 : 88,121.12 = 35,172.47 : x
  2. Step 2: Convert to fraction form
    63,858.40/88,121.12 = 35,172.47/x
  3. Step 3: Cross multiply
    63,858.40x = 88,121.12 × 35,172.47
  4. Step 4: Simplify right side
    63,858.40x = 3,099,437,449.57
  5. Step 5: Solve for x
    x = 3,099,437,449.57/63,858.40
  6. Step 6: Final answer
    x = 48,536.10

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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.