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Finding the Fourth Proportional to 267,386.25, 401,071.17 and 109,495.79

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Solution

The fourth proportional to 267,386.25, 401,071.17 and 109,495.79 is: 164,240.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,386.25 : 401,071.17 = 109,495.79 : x
  2. Step 2: Convert to fraction form
    267,386.25/401,071.17 = 109,495.79/x
  3. Step 3: Cross multiply
    267,386.25x = 401,071.17 × 109,495.79
  4. Step 4: Simplify right side
    267,386.25x = 43,915,602,600.02
  5. Step 5: Solve for x
    x = 43,915,602,600.02/267,386.25
  6. Step 6: Final answer
    x = 164,240.32

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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.