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Finding the Fourth Proportional to 125,466.08, 173,064.42 and 74,442.69

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Solution

The fourth proportional to 125,466.08, 173,064.42 and 74,442.69 is: 102,684.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,466.08 : 173,064.42 = 74,442.69 : x
  2. Step 2: Convert to fraction form
    125,466.08/173,064.42 = 74,442.69/x
  3. Step 3: Cross multiply
    125,466.08x = 173,064.42 × 74,442.69
  4. Step 4: Simplify right side
    125,466.08x = 12,883,380,968.09
  5. Step 5: Solve for x
    x = 12,883,380,968.09/125,466.08
  6. Step 6: Final answer
    x = 102,684.18

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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.