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Finding the Fourth Proportional to 79,703.17, 110,043.31 and 49,533.51

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Solution

The fourth proportional to 79,703.17, 110,043.31 and 49,533.51 is: 68,389.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,703.17 : 110,043.31 = 49,533.51 : x
  2. Step 2: Convert to fraction form
    79,703.17/110,043.31 = 49,533.51/x
  3. Step 3: Cross multiply
    79,703.17x = 110,043.31 × 49,533.51
  4. Step 4: Simplify right side
    79,703.17x = 5,450,831,396.32
  5. Step 5: Solve for x
    x = 5,450,831,396.32/79,703.17
  6. Step 6: Final answer
    x = 68,389.14

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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.