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Finding the Fourth Proportional to 664,356,587.80, 996,529,632.90 and 173,068,907.80

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Solution

The fourth proportional to 664,356,587.80, 996,529,632.90 and 173,068,907.80 is: 259,601,994.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,356,587.80 : 996,529,632.90 = 173,068,907.80 : x
  2. Step 2: Convert to fraction form
    664,356,587.80/996,529,632.90 = 173,068,907.80/x
  3. Step 3: Cross multiply
    664,356,587.80x = 996,529,632.90 × 173,068,907.80
  4. Step 4: Simplify right side
    664,356,587.80x = 172,468,295,156,337,952
  5. Step 5: Solve for x
    x = 172,468,295,156,337,952/664,356,587.80
  6. Step 6: Final answer
    x = 259,601,994.36

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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.