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Finding the Fourth Proportional to 86,030.73, 118,723.93 and 47,793.74

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Solution

The fourth proportional to 86,030.73, 118,723.93 and 47,793.74 is: 65,956.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,030.73 : 118,723.93 = 47,793.74 : x
  2. Step 2: Convert to fraction form
    86,030.73/118,723.93 = 47,793.74/x
  3. Step 3: Cross multiply
    86,030.73x = 118,723.93 × 47,793.74
  4. Step 4: Simplify right side
    86,030.73x = 5,674,259,929.09
  5. Step 5: Solve for x
    x = 5,674,259,929.09/86,030.73
  6. Step 6: Final answer
    x = 65,956.20

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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.