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Finding the Fourth Proportional to 86,802.30, 119,787.93 and 50,993.01

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Solution

The fourth proportional to 86,802.30, 119,787.93 and 50,993.01 is: 70,370.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,802.30 : 119,787.93 = 50,993.01 : x
  2. Step 2: Convert to fraction form
    86,802.30/119,787.93 = 50,993.01/x
  3. Step 3: Cross multiply
    86,802.30x = 119,787.93 × 50,993.01
  4. Step 4: Simplify right side
    86,802.30x = 6,108,347,112.37
  5. Step 5: Solve for x
    x = 6,108,347,112.37/86,802.30
  6. Step 6: Final answer
    x = 70,370.80

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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.