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Finding the Fourth Proportional to 92,071.36, 138,114.88 and 39,468.32

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Solution

The fourth proportional to 92,071.36, 138,114.88 and 39,468.32 is: 59,205.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,071.36 : 138,114.88 = 39,468.32 : x
  2. Step 2: Convert to fraction form
    92,071.36/138,114.88 = 39,468.32/x
  3. Step 3: Cross multiply
    92,071.36x = 138,114.88 × 39,468.32
  4. Step 4: Simplify right side
    92,071.36x = 5,451,162,280.60
  5. Step 5: Solve for x
    x = 5,451,162,280.60/92,071.36
  6. Step 6: Final answer
    x = 59,205.84

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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.