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Finding the Fourth Proportional to 258,600.10, 356,785.07 and 156,592.95

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Solution

The fourth proportional to 258,600.10, 356,785.07 and 156,592.95 is: 216,047.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,600.10 : 356,785.07 = 156,592.95 : x
  2. Step 2: Convert to fraction form
    258,600.10/356,785.07 = 156,592.95/x
  3. Step 3: Cross multiply
    258,600.10x = 356,785.07 × 156,592.95
  4. Step 4: Simplify right side
    258,600.10x = 55,870,025,844.29
  5. Step 5: Solve for x
    x = 55,870,025,844.29/258,600.10
  6. Step 6: Final answer
    x = 216,047.97

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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.