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Finding the Fourth Proportional to 146,245.50, 201,818.88 and 79,177.50

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Solution

The fourth proportional to 146,245.50, 201,818.88 and 79,177.50 is: 109,265.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,245.50 : 201,818.88 = 79,177.50 : x
  2. Step 2: Convert to fraction form
    146,245.50/201,818.88 = 79,177.50/x
  3. Step 3: Cross multiply
    146,245.50x = 201,818.88 × 79,177.50
  4. Step 4: Simplify right side
    146,245.50x = 15,979,514,371.20
  5. Step 5: Solve for x
    x = 15,979,514,371.20/146,245.50
  6. Step 6: Final answer
    x = 109,265.00

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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.