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Finding the Fourth Proportional to 529,435.98, 794,147.13 and 130,078.62

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Solution

The fourth proportional to 529,435.98, 794,147.13 and 130,078.62 is: 195,116.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,435.98 : 794,147.13 = 130,078.62 : x
  2. Step 2: Convert to fraction form
    529,435.98/794,147.13 = 130,078.62/x
  3. Step 3: Cross multiply
    529,435.98x = 794,147.13 × 130,078.62
  4. Step 4: Simplify right side
    529,435.98x = 103,301,562,747.36
  5. Step 5: Solve for x
    x = 103,301,562,747.36/529,435.98
  6. Step 6: Final answer
    x = 195,116.25

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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.