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Finding the Fourth Proportional to 171,125.60, 256,611.60 and 65,909.60

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Solution

The fourth proportional to 171,125.60, 256,611.60 and 65,909.60 is: 98,834.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,125.60 : 256,611.60 = 65,909.60 : x
  2. Step 2: Convert to fraction form
    171,125.60/256,611.60 = 65,909.60/x
  3. Step 3: Cross multiply
    171,125.60x = 256,611.60 × 65,909.60
  4. Step 4: Simplify right side
    171,125.60x = 16,913,167,911.36
  5. Step 5: Solve for x
    x = 16,913,167,911.36/171,125.60
  6. Step 6: Final answer
    x = 98,834.82

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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.