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Finding the Fourth Proportional to 53,865,018.80, 80,797,528.20 and 53,014,713.20

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Solution

The fourth proportional to 53,865,018.80, 80,797,528.20 and 53,014,713.20 is: 79,522,069.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,865,018.80 : 80,797,528.20 = 53,014,713.20 : x
  2. Step 2: Convert to fraction form
    53,865,018.80/80,797,528.20 = 53,014,713.20/x
  3. Step 3: Cross multiply
    53,865,018.80x = 80,797,528.20 × 53,014,713.20
  4. Step 4: Simplify right side
    53,865,018.80x = 4,283,457,784,791,912.50
  5. Step 5: Solve for x
    x = 4,283,457,784,791,912.50/53,865,018.80
  6. Step 6: Final answer
    x = 79,522,069.80

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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.