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Finding the Fourth Proportional to 71,259,694.40, 106,889,541.60 and 61,056,027.20

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Solution

The fourth proportional to 71,259,694.40, 106,889,541.60 and 61,056,027.20 is: 91,584,040.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,259,694.40 : 106,889,541.60 = 61,056,027.20 : x
  2. Step 2: Convert to fraction form
    71,259,694.40/106,889,541.60 = 61,056,027.20/x
  3. Step 3: Cross multiply
    71,259,694.40x = 106,889,541.60 × 61,056,027.20
  4. Step 4: Simplify right side
    71,259,694.40x = 6,526,250,759,325,131
  5. Step 5: Solve for x
    x = 6,526,250,759,325,131/71,259,694.40
  6. Step 6: Final answer
    x = 91,584,040.80

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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.