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Finding the Fourth Proportional to 263,483.57, 363,607.55 and 142,624.49

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Solution

The fourth proportional to 263,483.57, 363,607.55 and 142,624.49 is: 196,821.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,483.57 : 363,607.55 = 142,624.49 : x
  2. Step 2: Convert to fraction form
    263,483.57/363,607.55 = 142,624.49/x
  3. Step 3: Cross multiply
    263,483.57x = 363,607.55 × 142,624.49
  4. Step 4: Simplify right side
    263,483.57x = 51,859,338,847.74
  5. Step 5: Solve for x
    x = 51,859,338,847.74/263,483.57
  6. Step 6: Final answer
    x = 196,821.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.