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Finding the Fourth Proportional to 101,403.44, 139,935.92 and 56,083.32

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Solution

The fourth proportional to 101,403.44, 139,935.92 and 56,083.32 is: 77,394.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,403.44 : 139,935.92 = 56,083.32 : x
  2. Step 2: Convert to fraction form
    101,403.44/139,935.92 = 56,083.32/x
  3. Step 3: Cross multiply
    101,403.44x = 139,935.92 × 56,083.32
  4. Step 4: Simplify right side
    101,403.44x = 7,848,070,700.44
  5. Step 5: Solve for x
    x = 7,848,070,700.44/101,403.44
  6. Step 6: Final answer
    x = 77,394.53

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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.