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Finding the Fourth Proportional to 296,884.98, 445,320.96 and 72,246.90

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Solution

The fourth proportional to 296,884.98, 445,320.96 and 72,246.90 is: 108,368.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,884.98 : 445,320.96 = 72,246.90 : x
  2. Step 2: Convert to fraction form
    296,884.98/445,320.96 = 72,246.90/x
  3. Step 3: Cross multiply
    296,884.98x = 445,320.96 × 72,246.90
  4. Step 4: Simplify right side
    296,884.98x = 32,173,058,865.02
  5. Step 5: Solve for x
    x = 32,173,058,865.02/296,884.98
  6. Step 6: Final answer
    x = 108,368.77

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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.