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Finding the Fourth Proportional to 452,263.56, 678,493.74 and 136,712.25

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Solution

The fourth proportional to 452,263.56, 678,493.74 and 136,712.25 is: 205,098.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,263.56 : 678,493.74 = 136,712.25 : x
  2. Step 2: Convert to fraction form
    452,263.56/678,493.74 = 136,712.25/x
  3. Step 3: Cross multiply
    452,263.56x = 678,493.74 × 136,712.25
  4. Step 4: Simplify right side
    452,263.56x = 92,758,405,806.32
  5. Step 5: Solve for x
    x = 92,758,405,806.32/452,263.56
  6. Step 6: Final answer
    x = 205,098.12

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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.