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Finding the Fourth Proportional to 139,462.16, 192,458.50 and 75,800.00

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Solution

The fourth proportional to 139,462.16, 192,458.50 and 75,800.00 is: 104,604.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,462.16 : 192,458.50 = 75,800.00 : x
  2. Step 2: Convert to fraction form
    139,462.16/192,458.50 = 75,800.00/x
  3. Step 3: Cross multiply
    139,462.16x = 192,458.50 × 75,800.00
  4. Step 4: Simplify right side
    139,462.16x = 14,588,354,591.65
  5. Step 5: Solve for x
    x = 14,588,354,591.65/139,462.16
  6. Step 6: Final answer
    x = 104,604.40

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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.