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Finding the Fourth Proportional to 258,592.15, 356,849.94 and 156,677.95

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Solution

The fourth proportional to 258,592.15, 356,849.94 and 156,677.95 is: 216,211.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,592.15 : 356,849.94 = 156,677.95 : x
  2. Step 2: Convert to fraction form
    258,592.15/356,849.94 = 156,677.95/x
  3. Step 3: Cross multiply
    258,592.15x = 356,849.94 × 156,677.95
  4. Step 4: Simplify right side
    258,592.15x = 55,910,517,056.82
  5. Step 5: Solve for x
    x = 55,910,517,056.82/258,592.15
  6. Step 6: Final answer
    x = 216,211.19

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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.