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Finding the Fourth Proportional to 317,132.52, 437,643 and 173,889.60

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Solution

The fourth proportional to 317,132.52, 437,643 and 173,889.60 is: 239,967.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,132.52 : 437,643 = 173,889.60 : x
  2. Step 2: Convert to fraction form
    317,132.52/437,643 = 173,889.60/x
  3. Step 3: Cross multiply
    317,132.52x = 437,643 × 173,889.60
  4. Step 4: Simplify right side
    317,132.52x = 76,101,566,212.80
  5. Step 5: Solve for x
    x = 76,101,566,212.80/317,132.52
  6. Step 6: Final answer
    x = 239,967.72

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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.