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Finding the Fourth Proportional to 73,058.90, 109,588.35 and 67,874.90

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Solution

The fourth proportional to 73,058.90, 109,588.35 and 67,874.90 is: 101,812.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,058.90 : 109,588.35 = 67,874.90 : x
  2. Step 2: Convert to fraction form
    73,058.90/109,588.35 = 67,874.90/x
  3. Step 3: Cross multiply
    73,058.90x = 109,588.35 × 67,874.90
  4. Step 4: Simplify right side
    73,058.90x = 7,438,298,297.42
  5. Step 5: Solve for x
    x = 7,438,298,297.42/73,058.90
  6. Step 6: Final answer
    x = 101,812.35

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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.