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Finding the Fourth Proportional to 147,735, 203,881.68 and 84,078.72

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Solution

The fourth proportional to 147,735, 203,881.68 and 84,078.72 is: 116,032.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,735 : 203,881.68 = 84,078.72 : x
  2. Step 2: Convert to fraction form
    147,735/203,881.68 = 84,078.72/x
  3. Step 3: Cross multiply
    147,735x = 203,881.68 × 84,078.72
  4. Step 4: Simplify right side
    147,735x = 17,142,110,685.85
  5. Step 5: Solve for x
    x = 17,142,110,685.85/147,735
  6. Step 6: Final answer
    x = 116,032.83

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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.