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Finding the Fourth Proportional to 71,081,969.40, 99,801,735.30 and 71,081,969.40

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Solution

The fourth proportional to 71,081,969.40, 99,801,735.30 and 71,081,969.40 is: 99,801,735.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,081,969.40 : 99,801,735.30 = 71,081,969.40 : x
  2. Step 2: Convert to fraction form
    71,081,969.40/99,801,735.30 = 71,081,969.40/x
  3. Step 3: Cross multiply
    71,081,969.40x = 99,801,735.30 × 71,081,969.40
  4. Step 4: Simplify right side
    71,081,969.40x = 7,094,103,894,661,500
  5. Step 5: Solve for x
    x = 7,094,103,894,661,500/71,081,969.40
  6. Step 6: Final answer
    x = 99,801,735.30

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.