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Finding the Fourth Proportional to 99,700.67, 149,473.25 and 49,755.67

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Solution

The fourth proportional to 99,700.67, 149,473.25 and 49,755.67 is: 74,594.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,700.67 : 149,473.25 = 49,755.67 : x
  2. Step 2: Convert to fraction form
    99,700.67/149,473.25 = 49,755.67/x
  3. Step 3: Cross multiply
    99,700.67x = 149,473.25 × 49,755.67
  4. Step 4: Simplify right side
    99,700.67x = 7,437,141,264.95
  5. Step 5: Solve for x
    x = 7,437,141,264.95/99,700.67
  6. Step 6: Final answer
    x = 74,594.70

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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.