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Finding the Fourth Proportional to 354,132, 531,302.04 and 104,820.48

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Solution

The fourth proportional to 354,132, 531,302.04 and 104,820.48 is: 157,261.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,132 : 531,302.04 = 104,820.48 : x
  2. Step 2: Convert to fraction form
    354,132/531,302.04 = 104,820.48/x
  3. Step 3: Cross multiply
    354,132x = 531,302.04 × 104,820.48
  4. Step 4: Simplify right side
    354,132x = 55,691,334,857.78
  5. Step 5: Solve for x
    x = 55,691,334,857.78/354,132
  6. Step 6: Final answer
    x = 157,261.52

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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.