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Finding the Fourth Proportional to 137,171.48, 205,616.88 and 92,802.92

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Solution

The fourth proportional to 137,171.48, 205,616.88 and 92,802.92 is: 139,109.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,171.48 : 205,616.88 = 92,802.92 : x
  2. Step 2: Convert to fraction form
    137,171.48/205,616.88 = 92,802.92/x
  3. Step 3: Cross multiply
    137,171.48x = 205,616.88 × 92,802.92
  4. Step 4: Simplify right side
    137,171.48x = 19,081,845,837.21
  5. Step 5: Solve for x
    x = 19,081,845,837.21/137,171.48
  6. Step 6: Final answer
    x = 139,109.43

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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.