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Finding the Fourth Proportional to 99,917.46, 149,950.01 and 47,326.95

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Solution

The fourth proportional to 99,917.46, 149,950.01 and 47,326.95 is: 71,025.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,917.46 : 149,950.01 = 47,326.95 : x
  2. Step 2: Convert to fraction form
    99,917.46/149,950.01 = 47,326.95/x
  3. Step 3: Cross multiply
    99,917.46x = 149,950.01 × 47,326.95
  4. Step 4: Simplify right side
    99,917.46x = 7,096,676,625.77
  5. Step 5: Solve for x
    x = 7,096,676,625.77/99,917.46
  6. Step 6: Final answer
    x = 71,025.39

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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.