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Finding the Fourth Proportional to 69,339.20, 104,008.80 and 62,340.80

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Solution

The fourth proportional to 69,339.20, 104,008.80 and 62,340.80 is: 93,511.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,339.20 : 104,008.80 = 62,340.80 : x
  2. Step 2: Convert to fraction form
    69,339.20/104,008.80 = 62,340.80/x
  3. Step 3: Cross multiply
    69,339.20x = 104,008.80 × 62,340.80
  4. Step 4: Simplify right side
    69,339.20x = 6,483,991,799.04
  5. Step 5: Solve for x
    x = 6,483,991,799.04/69,339.20
  6. Step 6: Final answer
    x = 93,511.20

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1.5x scale

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.