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Finding the Fourth Proportional to 529,857.12, 794,786.12 and 130,506.08

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Solution

The fourth proportional to 529,857.12, 794,786.12 and 130,506.08 is: 195,759.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,857.12 : 794,786.12 = 130,506.08 : x
  2. Step 2: Convert to fraction form
    529,857.12/794,786.12 = 130,506.08/x
  3. Step 3: Cross multiply
    529,857.12x = 794,786.12 × 130,506.08
  4. Step 4: Simplify right side
    529,857.12x = 103,724,420,959.61
  5. Step 5: Solve for x
    x = 103,724,420,959.61/529,857.12
  6. Step 6: Final answer
    x = 195,759.23

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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.