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Finding the Fourth Proportional to 185,005.20, 277,410.60 and 66,658.80

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Solution

The fourth proportional to 185,005.20, 277,410.60 and 66,658.80 is: 99,953.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,005.20 : 277,410.60 = 66,658.80 : x
  2. Step 2: Convert to fraction form
    185,005.20/277,410.60 = 66,658.80/x
  3. Step 3: Cross multiply
    185,005.20x = 277,410.60 × 66,658.80
  4. Step 4: Simplify right side
    185,005.20x = 18,491,857,703.28
  5. Step 5: Solve for x
    x = 18,491,857,703.28/185,005.20
  6. Step 6: Final answer
    x = 99,953.18

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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.