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Finding the Fourth Proportional to 452,388.48, 678,606.08 and 115,432.08

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Solution

The fourth proportional to 452,388.48, 678,606.08 and 115,432.08 is: 173,154.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,388.48 : 678,606.08 = 115,432.08 : x
  2. Step 2: Convert to fraction form
    452,388.48/678,606.08 = 115,432.08/x
  3. Step 3: Cross multiply
    452,388.48x = 678,606.08 × 115,432.08
  4. Step 4: Simplify right side
    452,388.48x = 78,332,910,737.89
  5. Step 5: Solve for x
    x = 78,332,910,737.89/452,388.48
  6. Step 6: Final answer
    x = 173,154.08

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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.