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Finding the Fourth Proportional to 106,605.19, 147,115.11 and 61,292.03

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Solution

The fourth proportional to 106,605.19, 147,115.11 and 61,292.03 is: 84,582.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,605.19 : 147,115.11 = 61,292.03 : x
  2. Step 2: Convert to fraction form
    106,605.19/147,115.11 = 61,292.03/x
  3. Step 3: Cross multiply
    106,605.19x = 147,115.11 × 61,292.03
  4. Step 4: Simplify right side
    106,605.19x = 9,016,983,229.84
  5. Step 5: Solve for x
    x = 9,016,983,229.84/106,605.19
  6. Step 6: Final answer
    x = 84,582.97

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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.