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Finding the Fourth Proportional to 454,720.74, 681,893.44 and 155,225.47

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Solution

The fourth proportional to 454,720.74, 681,893.44 and 155,225.47 is: 232,774.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,720.74 : 681,893.44 = 155,225.47 : x
  2. Step 2: Convert to fraction form
    454,720.74/681,893.44 = 155,225.47/x
  3. Step 3: Cross multiply
    454,720.74x = 681,893.44 × 155,225.47
  4. Step 4: Simplify right side
    454,720.74x = 105,847,229,713.92
  5. Step 5: Solve for x
    x = 105,847,229,713.92/454,720.74
  6. Step 6: Final answer
    x = 232,774.14

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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.