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Finding the Fourth Proportional to 403,077.26, 604,518.61 and 118,690.49

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Solution

The fourth proportional to 403,077.26, 604,518.61 and 118,690.49 is: 178,007.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,077.26 : 604,518.61 = 118,690.49 : x
  2. Step 2: Convert to fraction form
    403,077.26/604,518.61 = 118,690.49/x
  3. Step 3: Cross multiply
    403,077.26x = 604,518.61 × 118,690.49
  4. Step 4: Simplify right side
    403,077.26x = 71,750,607,012.43
  5. Step 5: Solve for x
    x = 71,750,607,012.43/403,077.26
  6. Step 6: Final answer
    x = 178,007.08

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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.