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Finding the Fourth Proportional to 85,193.88, 127,869.48 and 43,103.58

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Solution

The fourth proportional to 85,193.88, 127,869.48 and 43,103.58 is: 64,695.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,193.88 : 127,869.48 = 43,103.58 : x
  2. Step 2: Convert to fraction form
    85,193.88/127,869.48 = 43,103.58/x
  3. Step 3: Cross multiply
    85,193.88x = 127,869.48 × 43,103.58
  4. Step 4: Simplify right side
    85,193.88x = 5,511,632,360.74
  5. Step 5: Solve for x
    x = 5,511,632,360.74/85,193.88
  6. Step 6: Final answer
    x = 64,695.17

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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.