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Finding the Fourth Proportional to 99,353.80, 149,030.70 and 92,744.20

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Solution

The fourth proportional to 99,353.80, 149,030.70 and 92,744.20 is: 139,116.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,353.80 : 149,030.70 = 92,744.20 : x
  2. Step 2: Convert to fraction form
    99,353.80/149,030.70 = 92,744.20/x
  3. Step 3: Cross multiply
    99,353.80x = 149,030.70 × 92,744.20
  4. Step 4: Simplify right side
    99,353.80x = 13,821,733,046.94
  5. Step 5: Solve for x
    x = 13,821,733,046.94/99,353.80
  6. Step 6: Final answer
    x = 139,116.30

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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.