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Finding the Fourth Proportional to 357,629.80, 536,444.70 and 108,311.80

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Solution

The fourth proportional to 357,629.80, 536,444.70 and 108,311.80 is: 162,467.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,629.80 : 536,444.70 = 108,311.80 : x
  2. Step 2: Convert to fraction form
    357,629.80/536,444.70 = 108,311.80/x
  3. Step 3: Cross multiply
    357,629.80x = 536,444.70 × 108,311.80
  4. Step 4: Simplify right side
    357,629.80x = 58,103,291,057.46
  5. Step 5: Solve for x
    x = 58,103,291,057.46/357,629.80
  6. Step 6: Final answer
    x = 162,467.70

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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.