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Finding the Fourth Proportional to 74,851.60, 112,299.72 and 22,262.80

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Solution

The fourth proportional to 74,851.60, 112,299.72 and 22,262.80 is: 33,400.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,851.60 : 112,299.72 = 22,262.80 : x
  2. Step 2: Convert to fraction form
    74,851.60/112,299.72 = 22,262.80/x
  3. Step 3: Cross multiply
    74,851.60x = 112,299.72 × 22,262.80
  4. Step 4: Simplify right side
    74,851.60x = 2,500,106,206.42
  5. Step 5: Solve for x
    x = 2,500,106,206.42/74,851.60
  6. Step 6: Final answer
    x = 33,400.84

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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.