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Finding the Fourth Proportional to 86,435.87, 119,275.39 and 48,193.78

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Solution

The fourth proportional to 86,435.87, 119,275.39 and 48,193.78 is: 66,504.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,435.87 : 119,275.39 = 48,193.78 : x
  2. Step 2: Convert to fraction form
    86,435.87/119,275.39 = 48,193.78/x
  3. Step 3: Cross multiply
    86,435.87x = 119,275.39 × 48,193.78
  4. Step 4: Simplify right side
    86,435.87x = 5,748,331,905.07
  5. Step 5: Solve for x
    x = 5,748,331,905.07/86,435.87
  6. Step 6: Final answer
    x = 66,504.01

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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.