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Finding the Fourth Proportional to 277,209.52, 415,810.62 and 66,845.76

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Solution

The fourth proportional to 277,209.52, 415,810.62 and 66,845.76 is: 100,267.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,209.52 : 415,810.62 = 66,845.76 : x
  2. Step 2: Convert to fraction form
    277,209.52/415,810.62 = 66,845.76/x
  3. Step 3: Cross multiply
    277,209.52x = 415,810.62 × 66,845.76
  4. Step 4: Simplify right side
    277,209.52x = 27,795,176,909.97
  5. Step 5: Solve for x
    x = 27,795,176,909.97/277,209.52
  6. Step 6: Final answer
    x = 100,267.76

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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.