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Finding the Fourth Proportional to 100,493.40, 150,837.30 and 61,127.40

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Solution

The fourth proportional to 100,493.40, 150,837.30 and 61,127.40 is: 91,750.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,493.40 : 150,837.30 = 61,127.40 : x
  2. Step 2: Convert to fraction form
    100,493.40/150,837.30 = 61,127.40/x
  3. Step 3: Cross multiply
    100,493.40x = 150,837.30 × 61,127.40
  4. Step 4: Simplify right side
    100,493.40x = 9,220,291,972.02
  5. Step 5: Solve for x
    x = 9,220,291,972.02/100,493.40
  6. Step 6: Final answer
    x = 91,750.22

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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.