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Finding the Fourth Proportional to 139,199.01, 192,095.13 and 75,536.80

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Solution

The fourth proportional to 139,199.01, 192,095.13 and 75,536.80 is: 104,241.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,199.01 : 192,095.13 = 75,536.80 : x
  2. Step 2: Convert to fraction form
    139,199.01/192,095.13 = 75,536.80/x
  3. Step 3: Cross multiply
    139,199.01x = 192,095.13 × 75,536.80
  4. Step 4: Simplify right side
    139,199.01x = 14,510,251,415.78
  5. Step 5: Solve for x
    x = 14,510,251,415.78/139,199.01
  6. Step 6: Final answer
    x = 104,241.05

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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.