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Finding the Fourth Proportional to 72,405,184.80, 108,607,777.20 and 72,405,184.80

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Solution

The fourth proportional to 72,405,184.80, 108,607,777.20 and 72,405,184.80 is: 108,607,777.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,405,184.80 : 108,607,777.20 = 72,405,184.80 : x
  2. Step 2: Convert to fraction form
    72,405,184.80/108,607,777.20 = 72,405,184.80/x
  3. Step 3: Cross multiply
    72,405,184.80x = 108,607,777.20 × 72,405,184.80
  4. Step 4: Simplify right side
    72,405,184.80x = 7,863,766,178,883,226
  5. Step 5: Solve for x
    x = 7,863,766,178,883,226/72,405,184.80
  6. Step 6: Final answer
    x = 108,607,777.20

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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.