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Finding the Fourth Proportional to 309,485.08, 464,361.25 and 167,430.41

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Solution

The fourth proportional to 309,485.08, 464,361.25 and 167,430.41 is: 251,217.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,485.08 : 464,361.25 = 167,430.41 : x
  2. Step 2: Convert to fraction form
    309,485.08/464,361.25 = 167,430.41/x
  3. Step 3: Cross multiply
    309,485.08x = 464,361.25 × 167,430.41
  4. Step 4: Simplify right side
    309,485.08x = 77,748,193,638.46
  5. Step 5: Solve for x
    x = 77,748,193,638.46/309,485.08
  6. Step 6: Final answer
    x = 251,217.91

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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.