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Finding the Fourth Proportional to 449,679.74, 674,503.52 and 112,723.16

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Solution

The fourth proportional to 449,679.74, 674,503.52 and 112,723.16 is: 169,080.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,679.74 : 674,503.52 = 112,723.16 : x
  2. Step 2: Convert to fraction form
    449,679.74/674,503.52 = 112,723.16/x
  3. Step 3: Cross multiply
    449,679.74x = 674,503.52 × 112,723.16
  4. Step 4: Simplify right side
    449,679.74x = 76,032,164,269.39
  5. Step 5: Solve for x
    x = 76,032,164,269.39/449,679.74
  6. Step 6: Final answer
    x = 169,080.70

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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.