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Finding the Fourth Proportional to 317,080.74, 437,559.78 and 173,837.64

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Solution

The fourth proportional to 317,080.74, 437,559.78 and 173,837.64 is: 239,889.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,080.74 : 437,559.78 = 173,837.64 : x
  2. Step 2: Convert to fraction form
    317,080.74/437,559.78 = 173,837.64/x
  3. Step 3: Cross multiply
    317,080.74x = 437,559.78 × 173,837.64
  4. Step 4: Simplify right side
    317,080.74x = 76,064,359,514.12
  5. Step 5: Solve for x
    x = 76,064,359,514.12/317,080.74
  6. Step 6: Final answer
    x = 239,889.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.