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Finding the Fourth Proportional to 353,103.80, 529,655.70 and 195,639.80

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Solution

The fourth proportional to 353,103.80, 529,655.70 and 195,639.80 is: 293,459.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,103.80 : 529,655.70 = 195,639.80 : x
  2. Step 2: Convert to fraction form
    353,103.80/529,655.70 = 195,639.80/x
  3. Step 3: Cross multiply
    353,103.80x = 529,655.70 × 195,639.80
  4. Step 4: Simplify right side
    353,103.80x = 103,621,735,216.86
  5. Step 5: Solve for x
    x = 103,621,735,216.86/353,103.80
  6. Step 6: Final answer
    x = 293,459.70

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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.