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Finding the Fourth Proportional to 86,858.42, 119,863.48 and 49,132.67

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Solution

The fourth proportional to 86,858.42, 119,863.48 and 49,132.67 is: 67,802.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,858.42 : 119,863.48 = 49,132.67 : x
  2. Step 2: Convert to fraction form
    86,858.42/119,863.48 = 49,132.67/x
  3. Step 3: Cross multiply
    86,858.42x = 119,863.48 × 49,132.67
  4. Step 4: Simplify right side
    86,858.42x = 5,889,212,562.23
  5. Step 5: Solve for x
    x = 5,889,212,562.23/86,858.42
  6. Step 6: Final answer
    x = 67,802.44

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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.