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Finding the Fourth Proportional to 93,311,998.80, 139,967,998.20 and 82,541,461.20

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Solution

The fourth proportional to 93,311,998.80, 139,967,998.20 and 82,541,461.20 is: 123,812,191.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,311,998.80 : 139,967,998.20 = 82,541,461.20 : x
  2. Step 2: Convert to fraction form
    93,311,998.80/139,967,998.20 = 82,541,461.20/x
  3. Step 3: Cross multiply
    93,311,998.80x = 139,967,998.20 × 82,541,461.20
  4. Step 4: Simplify right side
    93,311,998.80x = 11,553,163,092,666,970
  5. Step 5: Solve for x
    x = 11,553,163,092,666,970/93,311,998.80
  6. Step 6: Final answer
    x = 123,812,191.80

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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.