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Finding the Fourth Proportional to 293,080.20, 439,533.90 and 115,528.20

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Solution

The fourth proportional to 293,080.20, 439,533.90 and 115,528.20 is: 173,258.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,080.20 : 439,533.90 = 115,528.20 : x
  2. Step 2: Convert to fraction form
    293,080.20/439,533.90 = 115,528.20/x
  3. Step 3: Cross multiply
    293,080.20x = 439,533.90 × 115,528.20
  4. Step 4: Simplify right side
    293,080.20x = 50,778,560,305.98
  5. Step 5: Solve for x
    x = 50,778,560,305.98/293,080.20
  6. Step 6: Final answer
    x = 173,258.24

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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.