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Finding the Fourth Proportional to 263,543.66, 363,689.72 and 142,684.92

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Solution

The fourth proportional to 263,543.66, 363,689.72 and 142,684.92 is: 196,904.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,543.66 : 363,689.72 = 142,684.92 : x
  2. Step 2: Convert to fraction form
    263,543.66/363,689.72 = 142,684.92/x
  3. Step 3: Cross multiply
    263,543.66x = 363,689.72 × 142,684.92
  4. Step 4: Simplify right side
    263,543.66x = 51,893,037,889.60
  5. Step 5: Solve for x
    x = 51,893,037,889.60/263,543.66
  6. Step 6: Final answer
    x = 196,904.90

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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.