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Finding the Fourth Proportional to 101,699.01, 140,342.22 and 56,376.18

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Solution

The fourth proportional to 101,699.01, 140,342.22 and 56,376.18 is: 77,797.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,699.01 : 140,342.22 = 56,376.18 : x
  2. Step 2: Convert to fraction form
    101,699.01/140,342.22 = 56,376.18/x
  3. Step 3: Cross multiply
    101,699.01x = 140,342.22 × 56,376.18
  4. Step 4: Simplify right side
    101,699.01x = 7,911,958,256.32
  5. Step 5: Solve for x
    x = 7,911,958,256.32/101,699.01
  6. Step 6: Final answer
    x = 77,797.79

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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.