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Finding the Fourth Proportional to 104,966.60, 157,449.90 and 100,884.20

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Solution

The fourth proportional to 104,966.60, 157,449.90 and 100,884.20 is: 151,326.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,966.60 : 157,449.90 = 100,884.20 : x
  2. Step 2: Convert to fraction form
    104,966.60/157,449.90 = 100,884.20/x
  3. Step 3: Cross multiply
    104,966.60x = 157,449.90 × 100,884.20
  4. Step 4: Simplify right side
    104,966.60x = 15,884,207,201.58
  5. Step 5: Solve for x
    x = 15,884,207,201.58/104,966.60
  6. Step 6: Final answer
    x = 151,326.30

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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.