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Finding the Fourth Proportional to 123,851.48, 170,917.02 and 67,262.85

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Solution

The fourth proportional to 123,851.48, 170,917.02 and 67,262.85 is: 92,823.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,851.48 : 170,917.02 = 67,262.85 : x
  2. Step 2: Convert to fraction form
    123,851.48/170,917.02 = 67,262.85/x
  3. Step 3: Cross multiply
    123,851.48x = 170,917.02 × 67,262.85
  4. Step 4: Simplify right side
    123,851.48x = 11,496,365,878.71
  5. Step 5: Solve for x
    x = 11,496,365,878.71/123,851.48
  6. Step 6: Final answer
    x = 92,823.81

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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.