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Finding the Fourth Proportional to 68,687,764.80, 96,417,962.40 and 68,687,764.80

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Solution

The fourth proportional to 68,687,764.80, 96,417,962.40 and 68,687,764.80 is: 96,417,962.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,687,764.80 : 96,417,962.40 = 68,687,764.80 : x
  2. Step 2: Convert to fraction form
    68,687,764.80/96,417,962.40 = 68,687,764.80/x
  3. Step 3: Cross multiply
    68,687,764.80x = 96,417,962.40 × 68,687,764.80
  4. Step 4: Simplify right side
    68,687,764.80x = 6,622,734,323,826,444
  5. Step 5: Solve for x
    x = 6,622,734,323,826,444/68,687,764.80
  6. Step 6: Final answer
    x = 96,417,962.40

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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.