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Finding the Fourth Proportional to 452,269.17, 678,502.17 and 136,717.88

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Solution

The fourth proportional to 452,269.17, 678,502.17 and 136,717.88 is: 205,106.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,269.17 : 678,502.17 = 136,717.88 : x
  2. Step 2: Convert to fraction form
    452,269.17/678,502.17 = 136,717.88/x
  3. Step 3: Cross multiply
    452,269.17x = 678,502.17 × 136,717.88
  4. Step 4: Simplify right side
    452,269.17x = 92,763,374,865.29
  5. Step 5: Solve for x
    x = 92,763,374,865.29/452,269.17
  6. Step 6: Final answer
    x = 205,106.56

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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.