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Finding the Fourth Proportional to 317,105.98, 437,602.88 and 173,865.66

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Solution

The fourth proportional to 317,105.98, 437,602.88 and 173,865.66 is: 239,932.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,105.98 : 437,602.88 = 173,865.66 : x
  2. Step 2: Convert to fraction form
    317,105.98/437,602.88 = 173,865.66/x
  3. Step 3: Cross multiply
    317,105.98x = 437,602.88 × 173,865.66
  4. Step 4: Simplify right side
    317,105.98x = 76,084,113,549.10
  5. Step 5: Solve for x
    x = 76,084,113,549.10/317,105.98
  6. Step 6: Final answer
    x = 239,932.76

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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.