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Finding the Fourth Proportional to 139,716.66, 209,409.98 and 59,731.24

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Solution

The fourth proportional to 139,716.66, 209,409.98 and 59,731.24 is: 89,526.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,716.66 : 209,409.98 = 59,731.24 : x
  2. Step 2: Convert to fraction form
    139,716.66/209,409.98 = 59,731.24/x
  3. Step 3: Cross multiply
    139,716.66x = 209,409.98 × 59,731.24
  4. Step 4: Simplify right side
    139,716.66x = 12,508,317,344.24
  5. Step 5: Solve for x
    x = 12,508,317,344.24/139,716.66
  6. Step 6: Final answer
    x = 89,526.31

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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.