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Finding the Fourth Proportional to 74,798.58, 112,197 and 21,491.85

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Solution

The fourth proportional to 74,798.58, 112,197 and 21,491.85 is: 32,237.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,798.58 : 112,197 = 21,491.85 : x
  2. Step 2: Convert to fraction form
    74,798.58/112,197 = 21,491.85/x
  3. Step 3: Cross multiply
    74,798.58x = 112,197 × 21,491.85
  4. Step 4: Simplify right side
    74,798.58x = 2,411,321,094.45
  5. Step 5: Solve for x
    x = 2,411,321,094.45/74,798.58
  6. Step 6: Final answer
    x = 32,237.53

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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.