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Finding the Fourth Proportional to 200,458.80, 300,445.20 and 116,056.80

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Solution

The fourth proportional to 200,458.80, 300,445.20 and 116,056.80 is: 173,944.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,458.80 : 300,445.20 = 116,056.80 : x
  2. Step 2: Convert to fraction form
    200,458.80/300,445.20 = 116,056.80/x
  3. Step 3: Cross multiply
    200,458.80x = 300,445.20 × 116,056.80
  4. Step 4: Simplify right side
    200,458.80x = 34,868,708,487.36
  5. Step 5: Solve for x
    x = 34,868,708,487.36/200,458.80
  6. Step 6: Final answer
    x = 173,944.51

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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.