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Finding the Fourth Proportional to 145,710.33, 218,577.87 and 40,529.31

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Solution

The fourth proportional to 145,710.33, 218,577.87 and 40,529.31 is: 60,797.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,710.33 : 218,577.87 = 40,529.31 : x
  2. Step 2: Convert to fraction form
    145,710.33/218,577.87 = 40,529.31/x
  3. Step 3: Cross multiply
    145,710.33x = 218,577.87 × 40,529.31
  4. Step 4: Simplify right side
    145,710.33x = 8,858,810,252.37
  5. Step 5: Solve for x
    x = 8,858,810,252.37/145,710.33
  6. Step 6: Final answer
    x = 60,797.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.