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Finding the Fourth Proportional to 118,219.40, 177,329.10 and 73,896.20

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Solution

The fourth proportional to 118,219.40, 177,329.10 and 73,896.20 is: 110,844.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,219.40 : 177,329.10 = 73,896.20 : x
  2. Step 2: Convert to fraction form
    118,219.40/177,329.10 = 73,896.20/x
  3. Step 3: Cross multiply
    118,219.40x = 177,329.10 × 73,896.20
  4. Step 4: Simplify right side
    118,219.40x = 13,103,946,639.42
  5. Step 5: Solve for x
    x = 13,103,946,639.42/118,219.40
  6. Step 6: Final answer
    x = 110,844.30

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1.5x scale

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.