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Finding the Fourth Proportional to 139,494.35, 192,499.93 and 75,833.75

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Solution

The fourth proportional to 139,494.35, 192,499.93 and 75,833.75 is: 104,649.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,494.35 : 192,499.93 = 75,833.75 : x
  2. Step 2: Convert to fraction form
    139,494.35/192,499.93 = 75,833.75/x
  3. Step 3: Cross multiply
    139,494.35x = 192,499.93 × 75,833.75
  4. Step 4: Simplify right side
    139,494.35x = 14,597,991,566.64
  5. Step 5: Solve for x
    x = 14,597,991,566.64/139,494.35
  6. Step 6: Final answer
    x = 104,649.34

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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.