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Finding the Fourth Proportional to 116,718.78, 160,847.19 and 84,837.18

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Solution

The fourth proportional to 116,718.78, 160,847.19 and 84,837.18 is: 116,911.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,718.78 : 160,847.19 = 84,837.18 : x
  2. Step 2: Convert to fraction form
    116,718.78/160,847.19 = 84,837.18/x
  3. Step 3: Cross multiply
    116,718.78x = 160,847.19 × 84,837.18
  4. Step 4: Simplify right side
    116,718.78x = 13,645,822,010.52
  5. Step 5: Solve for x
    x = 13,645,822,010.52/116,718.78
  6. Step 6: Final answer
    x = 116,911.97

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1.5x scale

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.