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Finding the Fourth Proportional to 403,354.84, 604,891.14 and 118,969.88

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Solution

The fourth proportional to 403,354.84, 604,891.14 and 118,969.88 is: 178,413.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,354.84 : 604,891.14 = 118,969.88 : x
  2. Step 2: Convert to fraction form
    403,354.84/604,891.14 = 118,969.88/x
  3. Step 3: Cross multiply
    403,354.84x = 604,891.14 × 118,969.88
  4. Step 4: Simplify right side
    403,354.84x = 71,963,826,338.86
  5. Step 5: Solve for x
    x = 71,963,826,338.86/403,354.84
  6. Step 6: Final answer
    x = 178,413.20

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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.