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Finding the Fourth Proportional to 67,828.80, 93,635.89 and 45,205.50

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Solution

The fourth proportional to 67,828.80, 93,635.89 and 45,205.50 is: 62,405.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,828.80 : 93,635.89 = 45,205.50 : x
  2. Step 2: Convert to fraction form
    67,828.80/93,635.89 = 45,205.50/x
  3. Step 3: Cross multiply
    67,828.80x = 93,635.89 × 45,205.50
  4. Step 4: Simplify right side
    67,828.80x = 4,232,857,136.59
  5. Step 5: Solve for x
    x = 4,232,857,136.59/67,828.80
  6. Step 6: Final answer
    x = 62,405.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.