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Finding the Fourth Proportional to 118,219.30, 177,328.95 and 73,896.10

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Solution

The fourth proportional to 118,219.30, 177,328.95 and 73,896.10 is: 110,844.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,219.30 : 177,328.95 = 73,896.10 : x
  2. Step 2: Convert to fraction form
    118,219.30/177,328.95 = 73,896.10/x
  3. Step 3: Cross multiply
    118,219.30x = 177,328.95 × 73,896.10
  4. Step 4: Simplify right side
    118,219.30x = 13,103,917,822.10
  5. Step 5: Solve for x
    x = 13,103,917,822.10/118,219.30
  6. Step 6: Final answer
    x = 110,844.15

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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.