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Finding the Fourth Proportional to 157,718.97, 236,546.46 and 57,845.16

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Solution

The fourth proportional to 157,718.97, 236,546.46 and 57,845.16 is: 86,756.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,718.97 : 236,546.46 = 57,845.16 : x
  2. Step 2: Convert to fraction form
    157,718.97/236,546.46 = 57,845.16/x
  3. Step 3: Cross multiply
    157,718.97x = 236,546.46 × 57,845.16
  4. Step 4: Simplify right side
    157,718.97x = 13,683,067,826.13
  5. Step 5: Solve for x
    x = 13,683,067,826.13/157,718.97
  6. Step 6: Final answer
    x = 86,756.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.