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Finding the Fourth Proportional to 116,888, 161,305.44 and 66,587

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Solution

The fourth proportional to 116,888, 161,305.44 and 66,587 is: 91,890.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,888 : 161,305.44 = 66,587 : x
  2. Step 2: Convert to fraction form
    116,888/161,305.44 = 66,587/x
  3. Step 3: Cross multiply
    116,888x = 161,305.44 × 66,587
  4. Step 4: Simplify right side
    116,888x = 10,740,845,333.28
  5. Step 5: Solve for x
    x = 10,740,845,333.28/116,888
  6. Step 6: Final answer
    x = 91,890.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.