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Finding the Fourth Proportional to 403,076.76, 604,517.86 and 118,689.98

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Solution

The fourth proportional to 403,076.76, 604,517.86 and 118,689.98 is: 178,006.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,076.76 : 604,517.86 = 118,689.98 : x
  2. Step 2: Convert to fraction form
    403,076.76/604,517.86 = 118,689.98/x
  3. Step 3: Cross multiply
    403,076.76x = 604,517.86 × 118,689.98
  4. Step 4: Simplify right side
    403,076.76x = 71,750,214,605.62
  5. Step 5: Solve for x
    x = 71,750,214,605.62/403,076.76
  6. Step 6: Final answer
    x = 178,006.33

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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.