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Finding the Fourth Proportional to 99,604.80, 149,234.40 and 64,526.40

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Solution

The fourth proportional to 99,604.80, 149,234.40 and 64,526.40 is: 96,677.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,604.80 : 149,234.40 = 64,526.40 : x
  2. Step 2: Convert to fraction form
    99,604.80/149,234.40 = 64,526.40/x
  3. Step 3: Cross multiply
    99,604.80x = 149,234.40 × 64,526.40
  4. Step 4: Simplify right side
    99,604.80x = 9,629,558,588.16
  5. Step 5: Solve for x
    x = 9,629,558,588.16/99,604.80
  6. Step 6: Final answer
    x = 96,677.66

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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.