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Finding the Fourth Proportional to 62,409.20, 93,613.80 and 54,633.20

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Solution

The fourth proportional to 62,409.20, 93,613.80 and 54,633.20 is: 81,949.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,409.20 : 93,613.80 = 54,633.20 : x
  2. Step 2: Convert to fraction form
    62,409.20/93,613.80 = 54,633.20/x
  3. Step 3: Cross multiply
    62,409.20x = 93,613.80 × 54,633.20
  4. Step 4: Simplify right side
    62,409.20x = 5,114,421,458.16
  5. Step 5: Solve for x
    x = 5,114,421,458.16/62,409.20
  6. Step 6: Final answer
    x = 81,949.80

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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.