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Finding the Fourth Proportional to 71,058,000.20, 106,587,000.30 and 66,753,328.10

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Solution

The fourth proportional to 71,058,000.20, 106,587,000.30 and 66,753,328.10 is: 100,129,992.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,058,000.20 : 106,587,000.30 = 66,753,328.10 : x
  2. Step 2: Convert to fraction form
    71,058,000.20/106,587,000.30 = 66,753,328.10/x
  3. Step 3: Cross multiply
    71,058,000.20x = 106,587,000.30 × 66,753,328.10
  4. Step 4: Simplify right side
    71,058,000.20x = 7,115,037,002,220,698
  5. Step 5: Solve for x
    x = 7,115,037,002,220,698/71,058,000.20
  6. Step 6: Final answer
    x = 100,129,992.15

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.