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Finding the Fourth Proportional to 403,339.26, 604,867.86 and 118,954.38

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Solution

The fourth proportional to 403,339.26, 604,867.86 and 118,954.38 is: 178,389.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,339.26 : 604,867.86 = 118,954.38 : x
  2. Step 2: Convert to fraction form
    403,339.26/604,867.86 = 118,954.38/x
  3. Step 3: Cross multiply
    403,339.26x = 604,867.86 × 118,954.38
  4. Step 4: Simplify right side
    403,339.26x = 71,951,681,268.23
  5. Step 5: Solve for x
    x = 71,951,681,268.23/403,339.26
  6. Step 6: Final answer
    x = 178,389.98

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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.