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Finding the Fourth Proportional to 145,871.28, 218,893.59 and 62,765.28

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Solution

The fourth proportional to 145,871.28, 218,893.59 and 62,765.28 is: 94,185.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,871.28 : 218,893.59 = 62,765.28 : x
  2. Step 2: Convert to fraction form
    145,871.28/218,893.59 = 62,765.28/x
  3. Step 3: Cross multiply
    145,871.28x = 218,893.59 × 62,765.28
  4. Step 4: Simplify right side
    145,871.28x = 13,738,917,466.56
  5. Step 5: Solve for x
    x = 13,738,917,466.56/145,871.28
  6. Step 6: Final answer
    x = 94,185.21

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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.