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Finding the Fourth Proportional to 84,903.21, 117,160.83 and 46,661.94

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Solution

The fourth proportional to 84,903.21, 117,160.83 and 46,661.94 is: 64,390.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,903.21 : 117,160.83 = 46,661.94 : x
  2. Step 2: Convert to fraction form
    84,903.21/117,160.83 = 46,661.94/x
  3. Step 3: Cross multiply
    84,903.21x = 117,160.83 × 46,661.94
  4. Step 4: Simplify right side
    84,903.21x = 5,466,951,619.81
  5. Step 5: Solve for x
    x = 5,466,951,619.81/84,903.21
  6. Step 6: Final answer
    x = 64,390.40

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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.