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Finding the Fourth Proportional to 145,763.98, 218,709.44 and 51,062.34

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Solution

The fourth proportional to 145,763.98, 218,709.44 and 51,062.34 is: 76,615.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,763.98 : 218,709.44 = 51,062.34 : x
  2. Step 2: Convert to fraction form
    145,763.98/218,709.44 = 51,062.34/x
  3. Step 3: Cross multiply
    145,763.98x = 218,709.44 × 51,062.34
  4. Step 4: Simplify right side
    145,763.98x = 11,167,815,786.49
  5. Step 5: Solve for x
    x = 11,167,815,786.49/145,763.98
  6. Step 6: Final answer
    x = 76,615.74

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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.