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Finding the Fourth Proportional to 185,528.16, 256,029.12 and 100,645.44

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Solution

The fourth proportional to 185,528.16, 256,029.12 and 100,645.44 is: 138,890.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,528.16 : 256,029.12 = 100,645.44 : x
  2. Step 2: Convert to fraction form
    185,528.16/256,029.12 = 100,645.44/x
  3. Step 3: Cross multiply
    185,528.16x = 256,029.12 × 100,645.44
  4. Step 4: Simplify right side
    185,528.16x = 25,768,163,435.21
  5. Step 5: Solve for x
    x = 25,768,163,435.21/185,528.16
  6. Step 6: Final answer
    x = 138,890.85

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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.