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Finding the Fourth Proportional to 86,093.72, 118,803.57 and 47,850.79

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Solution

The fourth proportional to 86,093.72, 118,803.57 and 47,850.79 is: 66,030.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,093.72 : 118,803.57 = 47,850.79 : x
  2. Step 2: Convert to fraction form
    86,093.72/118,803.57 = 47,850.79/x
  3. Step 3: Cross multiply
    86,093.72x = 118,803.57 × 47,850.79
  4. Step 4: Simplify right side
    86,093.72x = 5,684,844,679.32
  5. Step 5: Solve for x
    x = 5,684,844,679.32/86,093.72
  6. Step 6: Final answer
    x = 66,030.89

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1.5x scale

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.