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Finding the Fourth Proportional to 74,672.04, 112,024.48 and 54,890.64

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Solution

The fourth proportional to 74,672.04, 112,024.48 and 54,890.64 is: 82,348.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,672.04 : 112,024.48 = 54,890.64 : x
  2. Step 2: Convert to fraction form
    74,672.04/112,024.48 = 54,890.64/x
  3. Step 3: Cross multiply
    74,672.04x = 112,024.48 × 54,890.64
  4. Step 4: Simplify right side
    74,672.04x = 6,149,095,402.87
  5. Step 5: Solve for x
    x = 6,149,095,402.87/74,672.04
  6. Step 6: Final answer
    x = 82,348.03

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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.