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Finding the Fourth Proportional to 193,484.88, 266,974.92 and 118,057.68

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Solution

The fourth proportional to 193,484.88, 266,974.92 and 118,057.68 is: 162,898.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,484.88 : 266,974.92 = 118,057.68 : x
  2. Step 2: Convert to fraction form
    193,484.88/266,974.92 = 118,057.68/x
  3. Step 3: Cross multiply
    193,484.88x = 266,974.92 × 118,057.68
  4. Step 4: Simplify right side
    193,484.88x = 31,518,439,673.39
  5. Step 5: Solve for x
    x = 31,518,439,673.39/193,484.88
  6. Step 6: Final answer
    x = 162,898.72

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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.