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Finding the Fourth Proportional to 104,886.80, 157,330.20 and 100,336.40

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Solution

The fourth proportional to 104,886.80, 157,330.20 and 100,336.40 is: 150,504.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,886.80 : 157,330.20 = 100,336.40 : x
  2. Step 2: Convert to fraction form
    104,886.80/157,330.20 = 100,336.40/x
  3. Step 3: Cross multiply
    104,886.80x = 157,330.20 × 100,336.40
  4. Step 4: Simplify right side
    104,886.80x = 15,785,945,879.28
  5. Step 5: Solve for x
    x = 15,785,945,879.28/104,886.80
  6. Step 6: Final answer
    x = 150,504.60

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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.