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Finding the Fourth Proportional to 172,313,893.60, 258,470,840.40 and 123,940,952.80

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Solution

The fourth proportional to 172,313,893.60, 258,470,840.40 and 123,940,952.80 is: 185,911,429.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,313,893.60 : 258,470,840.40 = 123,940,952.80 : x
  2. Step 2: Convert to fraction form
    172,313,893.60/258,470,840.40 = 123,940,952.80/x
  3. Step 3: Cross multiply
    172,313,893.60x = 258,470,840.40 × 123,940,952.80
  4. Step 4: Simplify right side
    172,313,893.60x = 32,035,122,230,192,732
  5. Step 5: Solve for x
    x = 32,035,122,230,192,732/172,313,893.60
  6. Step 6: Final answer
    x = 185,911,429.20

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