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Finding the Fourth Proportional to 86,134.46, 118,851.13 and 47,892.93

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Solution

The fourth proportional to 86,134.46, 118,851.13 and 47,892.93 is: 66,084.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,134.46 : 118,851.13 = 47,892.93 : x
  2. Step 2: Convert to fraction form
    86,134.46/118,851.13 = 47,892.93/x
  3. Step 3: Cross multiply
    86,134.46x = 118,851.13 × 47,892.93
  4. Step 4: Simplify right side
    86,134.46x = 5,692,128,849.51
  5. Step 5: Solve for x
    x = 5,692,128,849.51/86,134.46
  6. Step 6: Final answer
    x = 66,084.22

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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.