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Finding the Fourth Proportional to 208,557.03, 287,807.94 and 116,676.53

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Solution

The fourth proportional to 208,557.03, 287,807.94 and 116,676.53 is: 161,013.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,557.03 : 287,807.94 = 116,676.53 : x
  2. Step 2: Convert to fraction form
    208,557.03/287,807.94 = 116,676.53/x
  3. Step 3: Cross multiply
    208,557.03x = 287,807.94 × 116,676.53
  4. Step 4: Simplify right side
    208,557.03x = 33,580,430,306.61
  5. Step 5: Solve for x
    x = 33,580,430,306.61/208,557.03
  6. Step 6: Final answer
    x = 161,013.18

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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.