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Finding the Fourth Proportional to 101,963.37, 140,693.86 and 56,637.19

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Solution

The fourth proportional to 101,963.37, 140,693.86 and 56,637.19 is: 78,150.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,963.37 : 140,693.86 = 56,637.19 : x
  2. Step 2: Convert to fraction form
    101,963.37/140,693.86 = 56,637.19/x
  3. Step 3: Cross multiply
    101,963.37x = 140,693.86 × 56,637.19
  4. Step 4: Simplify right side
    101,963.37x = 7,968,505,127.32
  5. Step 5: Solve for x
    x = 7,968,505,127.32/101,963.37
  6. Step 6: Final answer
    x = 78,150.66

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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.