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Finding the Fourth Proportional to 139,599.42, 192,647.82 and 75,937.62

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Solution

The fourth proportional to 139,599.42, 192,647.82 and 75,937.62 is: 104,794.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,599.42 : 192,647.82 = 75,937.62 : x
  2. Step 2: Convert to fraction form
    139,599.42/192,647.82 = 75,937.62/x
  3. Step 3: Cross multiply
    139,599.42x = 192,647.82 × 75,937.62
  4. Step 4: Simplify right side
    139,599.42x = 14,629,216,948.99
  5. Step 5: Solve for x
    x = 14,629,216,948.99/139,599.42
  6. Step 6: Final answer
    x = 104,794.25

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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.