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Finding the Fourth Proportional to 101,551.58, 140,139.48 and 56,228.57

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Solution

The fourth proportional to 101,551.58, 140,139.48 and 56,228.57 is: 77,594.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,551.58 : 140,139.48 = 56,228.57 : x
  2. Step 2: Convert to fraction form
    101,551.58/140,139.48 = 56,228.57/x
  3. Step 3: Cross multiply
    101,551.58x = 140,139.48 × 56,228.57
  4. Step 4: Simplify right side
    101,551.58x = 7,879,842,560.94
  5. Step 5: Solve for x
    x = 7,879,842,560.94/101,551.58
  6. Step 6: Final answer
    x = 77,594.49

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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.