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Finding the Fourth Proportional to 117,368.47, 161,966.41 and 67,066.39

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Solution

The fourth proportional to 117,368.47, 161,966.41 and 67,066.39 is: 92,550.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,368.47 : 161,966.41 = 67,066.39 : x
  2. Step 2: Convert to fraction form
    117,368.47/161,966.41 = 67,066.39/x
  3. Step 3: Cross multiply
    117,368.47x = 161,966.41 × 67,066.39
  4. Step 4: Simplify right side
    117,368.47x = 10,862,502,419.96
  5. Step 5: Solve for x
    x = 10,862,502,419.96/117,368.47
  6. Step 6: Final answer
    x = 92,550.43

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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.