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Finding the Fourth Proportional to 62,409.60, 93,700.80 and 49,276.80

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Solution

The fourth proportional to 62,409.60, 93,700.80 and 49,276.80 is: 73,983.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,409.60 : 93,700.80 = 49,276.80 : x
  2. Step 2: Convert to fraction form
    62,409.60/93,700.80 = 49,276.80/x
  3. Step 3: Cross multiply
    62,409.60x = 93,700.80 × 49,276.80
  4. Step 4: Simplify right side
    62,409.60x = 4,617,275,581.44
  5. Step 5: Solve for x
    x = 4,617,275,581.44/62,409.60
  6. Step 6: Final answer
    x = 73,983.42

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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.