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Finding the Fourth Proportional to 185,692.20, 256,253.86 and 100,807.08

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Solution

The fourth proportional to 185,692.20, 256,253.86 and 100,807.08 is: 139,113.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,692.20 : 256,253.86 = 100,807.08 : x
  2. Step 2: Convert to fraction form
    185,692.20/256,253.86 = 100,807.08/x
  3. Step 3: Cross multiply
    185,692.20x = 256,253.86 × 100,807.08
  4. Step 4: Simplify right side
    185,692.20x = 25,832,203,365.33
  5. Step 5: Solve for x
    x = 25,832,203,365.33/185,692.20
  6. Step 6: Final answer
    x = 139,113.02

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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.