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Finding the Fourth Proportional to 277,200.80, 415,801.20 and 66,838.74

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Solution

The fourth proportional to 277,200.80, 415,801.20 and 66,838.74 is: 100,258.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,200.80 : 415,801.20 = 66,838.74 : x
  2. Step 2: Convert to fraction form
    277,200.80/415,801.20 = 66,838.74/x
  3. Step 3: Cross multiply
    277,200.80x = 415,801.20 × 66,838.74
  4. Step 4: Simplify right side
    277,200.80x = 27,791,628,298.49
  5. Step 5: Solve for x
    x = 27,791,628,298.49/277,200.80
  6. Step 6: Final answer
    x = 100,258.11

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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.