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Finding the Fourth Proportional to 353,504.80, 530,062.80 and 153,791.20

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Solution

The fourth proportional to 353,504.80, 530,062.80 and 153,791.20 is: 230,602.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,504.80 : 530,062.80 = 153,791.20 : x
  2. Step 2: Convert to fraction form
    353,504.80/530,062.80 = 153,791.20/x
  3. Step 3: Cross multiply
    353,504.80x = 530,062.80 × 153,791.20
  4. Step 4: Simplify right side
    353,504.80x = 81,518,994,087.36
  5. Step 5: Solve for x
    x = 81,518,994,087.36/353,504.80
  6. Step 6: Final answer
    x = 230,602.23

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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.