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Finding the Fourth Proportional to 185,115.60, 277,774.20 and 100,870.80

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Solution

The fourth proportional to 185,115.60, 277,774.20 and 100,870.80 is: 151,361.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,115.60 : 277,774.20 = 100,870.80 : x
  2. Step 2: Convert to fraction form
    185,115.60/277,774.20 = 100,870.80/x
  3. Step 3: Cross multiply
    185,115.60x = 277,774.20 × 100,870.80
  4. Step 4: Simplify right side
    185,115.60x = 28,019,305,773.36
  5. Step 5: Solve for x
    x = 28,019,305,773.36/185,115.60
  6. Step 6: Final answer
    x = 151,361.13

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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.