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Finding the Fourth Proportional to 100,445.60, 150,668.92 and 33,886.31

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Solution

The fourth proportional to 100,445.60, 150,668.92 and 33,886.31 is: 50,829.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,445.60 : 150,668.92 = 33,886.31 : x
  2. Step 2: Convert to fraction form
    100,445.60/150,668.92 = 33,886.31/x
  3. Step 3: Cross multiply
    100,445.60x = 150,668.92 × 33,886.31
  4. Step 4: Simplify right side
    100,445.60x = 5,105,613,730.49
  5. Step 5: Solve for x
    x = 5,105,613,730.49/100,445.60
  6. Step 6: Final answer
    x = 50,829.64

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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.