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Finding the Fourth Proportional to 208,501.00, 287,731.22 and 113,007.71

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Solution

The fourth proportional to 208,501.00, 287,731.22 and 113,007.71 is: 155,950.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,501.00 : 287,731.22 = 113,007.71 : x
  2. Step 2: Convert to fraction form
    208,501.00/287,731.22 = 113,007.71/x
  3. Step 3: Cross multiply
    208,501.00x = 287,731.22 × 113,007.71
  4. Step 4: Simplify right side
    208,501.00x = 32,515,847,269.55
  5. Step 5: Solve for x
    x = 32,515,847,269.55/208,501.00
  6. Step 6: Final answer
    x = 155,950.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.