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Finding the Fourth Proportional to 452,784.73, 679,200.36 and 115,828.30

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Solution

The fourth proportional to 452,784.73, 679,200.36 and 115,828.30 is: 173,748.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,784.73 : 679,200.36 = 115,828.30 : x
  2. Step 2: Convert to fraction form
    452,784.73/679,200.36 = 115,828.30/x
  3. Step 3: Cross multiply
    452,784.73x = 679,200.36 × 115,828.30
  4. Step 4: Simplify right side
    452,784.73x = 78,670,625,627.41
  5. Step 5: Solve for x
    x = 78,670,625,627.41/452,784.73
  6. Step 6: Final answer
    x = 173,748.41

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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.