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Finding the Fourth Proportional to 449,569.70, 674,354.55 and 117,145.70

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Solution

The fourth proportional to 449,569.70, 674,354.55 and 117,145.70 is: 175,718.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,569.70 : 674,354.55 = 117,145.70 : x
  2. Step 2: Convert to fraction form
    449,569.70/674,354.55 = 117,145.70/x
  3. Step 3: Cross multiply
    449,569.70x = 674,354.55 × 117,145.70
  4. Step 4: Simplify right side
    449,569.70x = 78,997,735,807.94
  5. Step 5: Solve for x
    x = 78,997,735,807.94/449,569.70
  6. Step 6: Final answer
    x = 175,718.55

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Similar ratio
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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.