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Finding the Fourth Proportional to 99,466.90, 149,201.93 and 55,373.90

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Solution

The fourth proportional to 99,466.90, 149,201.93 and 55,373.90 is: 83,061.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,466.90 : 149,201.93 = 55,373.90 : x
  2. Step 2: Convert to fraction form
    99,466.90/149,201.93 = 55,373.90/x
  3. Step 3: Cross multiply
    99,466.90x = 149,201.93 × 55,373.90
  4. Step 4: Simplify right side
    99,466.90x = 8,261,892,847.76
  5. Step 5: Solve for x
    x = 8,261,892,847.76/99,466.90
  6. Step 6: Final answer
    x = 83,061.73

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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.