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Finding the Fourth Proportional to 78,335.39, 108,102.56 and 42,525.14

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Solution

The fourth proportional to 78,335.39, 108,102.56 and 42,525.14 is: 58,684.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,335.39 : 108,102.56 = 42,525.14 : x
  2. Step 2: Convert to fraction form
    78,335.39/108,102.56 = 42,525.14/x
  3. Step 3: Cross multiply
    78,335.39x = 108,102.56 × 42,525.14
  4. Step 4: Simplify right side
    78,335.39x = 4,597,075,745.22
  5. Step 5: Solve for x
    x = 4,597,075,745.22/78,335.39
  6. Step 6: Final answer
    x = 58,684.54

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.