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Finding the Fourth Proportional to 84,418.61, 116,492.78 and 46,170.51

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Solution

The fourth proportional to 84,418.61, 116,492.78 and 46,170.51 is: 63,712.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,418.61 : 116,492.78 = 46,170.51 : x
  2. Step 2: Convert to fraction form
    84,418.61/116,492.78 = 46,170.51/x
  3. Step 3: Cross multiply
    84,418.61x = 116,492.78 × 46,170.51
  4. Step 4: Simplify right side
    84,418.61x = 5,378,530,742.50
  5. Step 5: Solve for x
    x = 5,378,530,742.50/84,418.61
  6. Step 6: Final answer
    x = 63,712.62

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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.