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Finding the Fourth Proportional to 139,244.67, 192,157.85 and 75,582.52

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Solution

The fourth proportional to 139,244.67, 192,157.85 and 75,582.52 is: 104,303.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,244.67 : 192,157.85 = 75,582.52 : x
  2. Step 2: Convert to fraction form
    139,244.67/192,157.85 = 75,582.52/x
  3. Step 3: Cross multiply
    139,244.67x = 192,157.85 × 75,582.52
  4. Step 4: Simplify right side
    139,244.67x = 14,523,774,249.34
  5. Step 5: Solve for x
    x = 14,523,774,249.34/139,244.67
  6. Step 6: Final answer
    x = 104,303.99

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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.