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Finding the Fourth Proportional to 86,052.93, 118,751.55 and 47,812.83

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Solution

The fourth proportional to 86,052.93, 118,751.55 and 47,812.83 is: 65,980.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,052.93 : 118,751.55 = 47,812.83 : x
  2. Step 2: Convert to fraction form
    86,052.93/118,751.55 = 47,812.83/x
  3. Step 3: Cross multiply
    86,052.93x = 118,751.55 × 47,812.83
  4. Step 4: Simplify right side
    86,052.93x = 5,677,847,672.39
  5. Step 5: Solve for x
    x = 5,677,847,672.39/86,052.93
  6. Step 6: Final answer
    x = 65,980.88

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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.