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Finding the Fourth Proportional to 101,473.83, 140,028.93 and 56,151

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Solution

The fourth proportional to 101,473.83, 140,028.93 and 56,151 is: 77,485.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,473.83 : 140,028.93 = 56,151 : x
  2. Step 2: Convert to fraction form
    101,473.83/140,028.93 = 56,151/x
  3. Step 3: Cross multiply
    101,473.83x = 140,028.93 × 56,151
  4. Step 4: Simplify right side
    101,473.83x = 7,862,764,448.43
  5. Step 5: Solve for x
    x = 7,862,764,448.43/101,473.83
  6. Step 6: Final answer
    x = 77,485.64

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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.