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Finding the Fourth Proportional to 84,488.68, 116,606.66 and 48,671.72

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Solution

The fourth proportional to 84,488.68, 116,606.66 and 48,671.72 is: 67,174.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,488.68 : 116,606.66 = 48,671.72 : x
  2. Step 2: Convert to fraction form
    84,488.68/116,606.66 = 48,671.72/x
  3. Step 3: Cross multiply
    84,488.68x = 116,606.66 × 48,671.72
  4. Step 4: Simplify right side
    84,488.68x = 5,675,446,705.66
  5. Step 5: Solve for x
    x = 5,675,446,705.66/84,488.68
  6. Step 6: Final answer
    x = 67,174.05

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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.