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Finding the Fourth Proportional to 262,167.44, 393,259.86 and 72,629.71

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Solution

The fourth proportional to 262,167.44, 393,259.86 and 72,629.71 is: 108,946.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,167.44 : 393,259.86 = 72,629.71 : x
  2. Step 2: Convert to fraction form
    262,167.44/393,259.86 = 72,629.71/x
  3. Step 3: Cross multiply
    262,167.44x = 393,259.86 × 72,629.71
  4. Step 4: Simplify right side
    262,167.44x = 28,562,350,815.38
  5. Step 5: Solve for x
    x = 28,562,350,815.38/262,167.44
  6. Step 6: Final answer
    x = 108,946.98

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1.5x scale

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.