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Finding the Fourth Proportional to 299,221.45, 448,444.38 and 121,522.03

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Solution

The fourth proportional to 299,221.45, 448,444.38 and 121,522.03 is: 182,125.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,221.45 : 448,444.38 = 121,522.03 : x
  2. Step 2: Convert to fraction form
    299,221.45/448,444.38 = 121,522.03/x
  3. Step 3: Cross multiply
    299,221.45x = 448,444.38 × 121,522.03
  4. Step 4: Simplify right side
    299,221.45x = 54,495,871,399.69
  5. Step 5: Solve for x
    x = 54,495,871,399.69/299,221.45
  6. Step 6: Final answer
    x = 182,125.55

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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.