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Finding the Fourth Proportional to 185,878.58, 256,519.58 and 100,995.66

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Solution

The fourth proportional to 185,878.58, 256,519.58 and 100,995.66 is: 139,377.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,878.58 : 256,519.58 = 100,995.66 : x
  2. Step 2: Convert to fraction form
    185,878.58/256,519.58 = 100,995.66/x
  3. Step 3: Cross multiply
    185,878.58x = 256,519.58 × 100,995.66
  4. Step 4: Simplify right side
    185,878.58x = 25,907,363,780.04
  5. Step 5: Solve for x
    x = 25,907,363,780.04/185,878.58
  6. Step 6: Final answer
    x = 139,377.89

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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.