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Finding the Fourth Proportional to 664,356,743.80, 996,529,866.90 and 173,069,063.80

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Solution

The fourth proportional to 664,356,743.80, 996,529,866.90 and 173,069,063.80 is: 259,602,228.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,356,743.80 : 996,529,866.90 = 173,069,063.80 : x
  2. Step 2: Convert to fraction form
    664,356,743.80/996,529,866.90 = 173,069,063.80/x
  3. Step 3: Cross multiply
    664,356,743.80x = 996,529,866.90 × 173,069,063.80
  4. Step 4: Simplify right side
    664,356,743.80x = 172,468,491,113,121,600
  5. Step 5: Solve for x
    x = 172,468,491,113,121,600/664,356,743.80
  6. Step 6: Final answer
    x = 259,602,228.35

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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.