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Finding the Fourth Proportional to 86,160.97, 118,893.07 and 47,914.32

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Solution

The fourth proportional to 86,160.97, 118,893.07 and 47,914.32 is: 66,116.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,160.97 : 118,893.07 = 47,914.32 : x
  2. Step 2: Convert to fraction form
    86,160.97/118,893.07 = 47,914.32/x
  3. Step 3: Cross multiply
    86,160.97x = 118,893.07 × 47,914.32
  4. Step 4: Simplify right side
    86,160.97x = 5,696,680,670.79
  5. Step 5: Solve for x
    x = 5,696,680,670.79/86,160.97
  6. Step 6: Final answer
    x = 66,116.72

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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.