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Finding the Fourth Proportional to 93,313,297.80, 139,969,946.70 and 54,955,067.40

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Solution

The fourth proportional to 93,313,297.80, 139,969,946.70 and 54,955,067.40 is: 82,432,601.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,313,297.80 : 139,969,946.70 = 54,955,067.40 : x
  2. Step 2: Convert to fraction form
    93,313,297.80/139,969,946.70 = 54,955,067.40/x
  3. Step 3: Cross multiply
    93,313,297.80x = 139,969,946.70 × 54,955,067.40
  4. Step 4: Simplify right side
    93,313,297.80x = 7,692,057,854,872,907
  5. Step 5: Solve for x
    x = 7,692,057,854,872,907/93,313,297.80
  6. Step 6: Final answer
    x = 82,432,601.10

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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.