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Finding the Fourth Proportional to 71,313,796.60, 106,970,694.90 and 17,461,108.60

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Solution

The fourth proportional to 71,313,796.60, 106,970,694.90 and 17,461,108.60 is: 26,191,662.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,313,796.60 : 106,970,694.90 = 17,461,108.60 : x
  2. Step 2: Convert to fraction form
    71,313,796.60/106,970,694.90 = 17,461,108.60/x
  3. Step 3: Cross multiply
    71,313,796.60x = 106,970,694.90 × 17,461,108.60
  4. Step 4: Simplify right side
    71,313,796.60x = 1,867,826,920,666,366.50
  5. Step 5: Solve for x
    x = 1,867,826,920,666,366.50/71,313,796.60
  6. Step 6: Final answer
    x = 26,191,662.90

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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.