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Finding the Fourth Proportional to 98,040.21, 147,001.01 and 43,994.98

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Solution

The fourth proportional to 98,040.21, 147,001.01 and 43,994.98 is: 65,965.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,040.21 : 147,001.01 = 43,994.98 : x
  2. Step 2: Convert to fraction form
    98,040.21/147,001.01 = 43,994.98/x
  3. Step 3: Cross multiply
    98,040.21x = 147,001.01 × 43,994.98
  4. Step 4: Simplify right side
    98,040.21x = 6,467,306,274.95
  5. Step 5: Solve for x
    x = 6,467,306,274.95/98,040.21
  6. Step 6: Final answer
    x = 65,965.86

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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.