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Finding the Fourth Proportional to 93,313,267.80, 139,969,901.70 and 83,907,418.20

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Solution

The fourth proportional to 93,313,267.80, 139,969,901.70 and 83,907,418.20 is: 125,861,127.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,313,267.80 : 139,969,901.70 = 83,907,418.20 : x
  2. Step 2: Convert to fraction form
    93,313,267.80/139,969,901.70 = 83,907,418.20/x
  3. Step 3: Cross multiply
    93,313,267.80x = 139,969,901.70 × 83,907,418.20
  4. Step 4: Simplify right side
    93,313,267.80x = 11,744,513,077,354,790
  5. Step 5: Solve for x
    x = 11,744,513,077,354,790/93,313,267.80
  6. Step 6: Final answer
    x = 125,861,127.30

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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.