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Finding the Fourth Proportional to 157,796.00, 217,759.28 and 86,176.02

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Solution

The fourth proportional to 157,796.00, 217,759.28 and 86,176.02 is: 118,923.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,796.00 : 217,759.28 = 86,176.02 : x
  2. Step 2: Convert to fraction form
    157,796.00/217,759.28 = 86,176.02/x
  3. Step 3: Cross multiply
    157,796.00x = 217,759.28 × 86,176.02
  4. Step 4: Simplify right side
    157,796.00x = 18,765,627,637.59
  5. Step 5: Solve for x
    x = 18,765,627,637.59/157,796.00
  6. Step 6: Final answer
    x = 118,923.35

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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.