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Finding the Fourth Proportional to 472,576.60, 708,908.10 and 192,035.80

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Solution

The fourth proportional to 472,576.60, 708,908.10 and 192,035.80 is: 288,071.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,576.60 : 708,908.10 = 192,035.80 : x
  2. Step 2: Convert to fraction form
    472,576.60/708,908.10 = 192,035.80/x
  3. Step 3: Cross multiply
    472,576.60x = 708,908.10 × 192,035.80
  4. Step 4: Simplify right side
    472,576.60x = 136,135,734,109.98
  5. Step 5: Solve for x
    x = 136,135,734,109.98/472,576.60
  6. Step 6: Final answer
    x = 288,071.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.