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Finding the Fourth Proportional to 101,690.98, 140,338.71 and 58,654.46

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Solution

The fourth proportional to 101,690.98, 140,338.71 and 58,654.46 is: 80,946.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,690.98 : 140,338.71 = 58,654.46 : x
  2. Step 2: Convert to fraction form
    101,690.98/140,338.71 = 58,654.46/x
  3. Step 3: Cross multiply
    101,690.98x = 140,338.71 × 58,654.46
  4. Step 4: Simplify right side
    101,690.98x = 8,231,491,602.99
  5. Step 5: Solve for x
    x = 8,231,491,602.99/101,690.98
  6. Step 6: Final answer
    x = 80,946.14

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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.