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Finding the Fourth Proportional to 220,785.98, 304,692.00 and 124,006.86

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Solution

The fourth proportional to 220,785.98, 304,692.00 and 124,006.86 is: 171,133.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,785.98 : 304,692.00 = 124,006.86 : x
  2. Step 2: Convert to fraction form
    220,785.98/304,692.00 = 124,006.86/x
  3. Step 3: Cross multiply
    220,785.98x = 304,692.00 × 124,006.86
  4. Step 4: Simplify right side
    220,785.98x = 37,783,899,258.87
  5. Step 5: Solve for x
    x = 37,783,899,258.87/220,785.98
  6. Step 6: Final answer
    x = 171,133.60

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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.