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Finding the Fourth Proportional to 86,113.51, 118,787.10 and 53,791.94

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Solution

The fourth proportional to 86,113.51, 118,787.10 and 53,791.94 is: 74,201.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,113.51 : 118,787.10 = 53,791.94 : x
  2. Step 2: Convert to fraction form
    86,113.51/118,787.10 = 53,791.94/x
  3. Step 3: Cross multiply
    86,113.51x = 118,787.10 × 53,791.94
  4. Step 4: Simplify right side
    86,113.51x = 6,389,788,555.97
  5. Step 5: Solve for x
    x = 6,389,788,555.97/86,113.51
  6. Step 6: Final answer
    x = 74,201.93

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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.