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Finding the Fourth Proportional to 134,508, 185,634 and 74,892

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Solution

The fourth proportional to 134,508, 185,634 and 74,892 is: 103,358.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,508 : 185,634 = 74,892 : x
  2. Step 2: Convert to fraction form
    134,508/185,634 = 74,892/x
  3. Step 3: Cross multiply
    134,508x = 185,634 × 74,892
  4. Step 4: Simplify right side
    134,508x = 13,902,501,528
  5. Step 5: Solve for x
    x = 13,902,501,528/134,508
  6. Step 6: Final answer
    x = 103,358.18

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