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Finding the Fourth Proportional to 67,373,999.60, 100,872,042.60 and 65,484,431.60

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Solution

The fourth proportional to 67,373,999.60, 100,872,042.60 and 65,484,431.60 is: 98,042,990.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,373,999.60 : 100,872,042.60 = 65,484,431.60 : x
  2. Step 2: Convert to fraction form
    67,373,999.60/100,872,042.60 = 65,484,431.60/x
  3. Step 3: Cross multiply
    67,373,999.60x = 100,872,042.60 × 65,484,431.60
  4. Step 4: Simplify right side
    67,373,999.60x = 6,605,548,373,991,986
  5. Step 5: Solve for x
    x = 6,605,548,373,991,986/67,373,999.60
  6. Step 6: Final answer
    x = 98,042,990.07

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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.