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Finding the Fourth Proportional to 171,053.60, 256,288.80 and 141,310.40

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Solution

The fourth proportional to 171,053.60, 256,288.80 and 141,310.40 is: 211,724.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,053.60 : 256,288.80 = 141,310.40 : x
  2. Step 2: Convert to fraction form
    171,053.60/256,288.80 = 141,310.40/x
  3. Step 3: Cross multiply
    171,053.60x = 256,288.80 × 141,310.40
  4. Step 4: Simplify right side
    171,053.60x = 36,216,272,843.52
  5. Step 5: Solve for x
    x = 36,216,272,843.52/171,053.60
  6. Step 6: Final answer
    x = 211,724.70

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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.