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Finding the Fourth Proportional to 103,625.82, 142,993.42 and 58,302.80

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Solution

The fourth proportional to 103,625.82, 142,993.42 and 58,302.80 is: 80,452.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,625.82 : 142,993.42 = 58,302.80 : x
  2. Step 2: Convert to fraction form
    103,625.82/142,993.42 = 58,302.80/x
  3. Step 3: Cross multiply
    103,625.82x = 142,993.42 × 58,302.80
  4. Step 4: Simplify right side
    103,625.82x = 8,336,916,191.46
  5. Step 5: Solve for x
    x = 8,336,916,191.46/103,625.82
  6. Step 6: Final answer
    x = 80,452.12

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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.