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Finding the Fourth Proportional to 71,313,863.60, 106,970,795.40 and 17,461,175.60

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Solution

The fourth proportional to 71,313,863.60, 106,970,795.40 and 17,461,175.60 is: 26,191,763.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,313,863.60 : 106,970,795.40 = 17,461,175.60 : x
  2. Step 2: Convert to fraction form
    71,313,863.60/106,970,795.40 = 17,461,175.60/x
  3. Step 3: Cross multiply
    71,313,863.60x = 106,970,795.40 × 17,461,175.60
  4. Step 4: Simplify right side
    71,313,863.60x = 1,867,835,842,551,072.50
  5. Step 5: Solve for x
    x = 1,867,835,842,551,072.50/71,313,863.60
  6. Step 6: Final answer
    x = 26,191,763.40

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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.