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Finding the Fourth Proportional to 104,534.88, 156,793.68 and 34,421.28

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Solution

The fourth proportional to 104,534.88, 156,793.68 and 34,421.28 is: 51,629.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,534.88 : 156,793.68 = 34,421.28 : x
  2. Step 2: Convert to fraction form
    104,534.88/156,793.68 = 34,421.28/x
  3. Step 3: Cross multiply
    104,534.88x = 156,793.68 × 34,421.28
  4. Step 4: Simplify right side
    104,534.88x = 5,397,039,161.51
  5. Step 5: Solve for x
    x = 5,397,039,161.51/104,534.88
  6. Step 6: Final answer
    x = 51,629.08

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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.