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Finding the Fourth Proportional to 317,255.88, 437,813.76 and 174,017.12

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Solution

The fourth proportional to 317,255.88, 437,813.76 and 174,017.12 is: 240,143.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,255.88 : 437,813.76 = 174,017.12 : x
  2. Step 2: Convert to fraction form
    317,255.88/437,813.76 = 174,017.12/x
  3. Step 3: Cross multiply
    317,255.88x = 437,813.76 × 174,017.12
  4. Step 4: Simplify right side
    317,255.88x = 76,187,089,611.57
  5. Step 5: Solve for x
    x = 76,187,089,611.57/317,255.88
  6. Step 6: Final answer
    x = 240,143.98

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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.