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Finding the Fourth Proportional to 272,458.21, 375,994.16 and 151,604.59

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Solution

The fourth proportional to 272,458.21, 375,994.16 and 151,604.59 is: 209,215.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,458.21 : 375,994.16 = 151,604.59 : x
  2. Step 2: Convert to fraction form
    272,458.21/375,994.16 = 151,604.59/x
  3. Step 3: Cross multiply
    272,458.21x = 375,994.16 × 151,604.59
  4. Step 4: Simplify right side
    272,458.21x = 57,002,440,469.19
  5. Step 5: Solve for x
    x = 57,002,440,469.19/272,458.21
  6. Step 6: Final answer
    x = 209,215.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.