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Finding the Fourth Proportional to 355,802.49, 533,775.06 and 131,163.93

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Solution

The fourth proportional to 355,802.49, 533,775.06 and 131,163.93 is: 196,772.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,802.49 : 533,775.06 = 131,163.93 : x
  2. Step 2: Convert to fraction form
    355,802.49/533,775.06 = 131,163.93/x
  3. Step 3: Cross multiply
    355,802.49x = 533,775.06 × 131,163.93
  4. Step 4: Simplify right side
    355,802.49x = 70,012,034,605.59
  5. Step 5: Solve for x
    x = 70,012,034,605.59/355,802.49
  6. Step 6: Final answer
    x = 196,772.19

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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.