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Finding the Fourth Proportional to 86,571.67, 130,054.55 and 62,629.81

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Solution

The fourth proportional to 86,571.67, 130,054.55 and 62,629.81 is: 94,087.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,571.67 : 130,054.55 = 62,629.81 : x
  2. Step 2: Convert to fraction form
    86,571.67/130,054.55 = 62,629.81/x
  3. Step 3: Cross multiply
    86,571.67x = 130,054.55 × 62,629.81
  4. Step 4: Simplify right side
    86,571.67x = 8,145,291,756.14
  5. Step 5: Solve for x
    x = 8,145,291,756.14/86,571.67
  6. Step 6: Final answer
    x = 94,087.27

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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.