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Finding the Fourth Proportional to 663,108.70, 994,663.05 and 164,472.70

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Solution

The fourth proportional to 663,108.70, 994,663.05 and 164,472.70 is: 246,709.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,108.70 : 994,663.05 = 164,472.70 : x
  2. Step 2: Convert to fraction form
    663,108.70/994,663.05 = 164,472.70/x
  3. Step 3: Cross multiply
    663,108.70x = 994,663.05 × 164,472.70
  4. Step 4: Simplify right side
    663,108.70x = 163,594,917,423.74
  5. Step 5: Solve for x
    x = 163,594,917,423.74/663,108.70
  6. Step 6: Final answer
    x = 246,709.05

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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.