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Finding the Fourth Proportional to 68,945.48, 103,440.50 and 33,860.53

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Solution

The fourth proportional to 68,945.48, 103,440.50 and 33,860.53 is: 50,801.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,945.48 : 103,440.50 = 33,860.53 : x
  2. Step 2: Convert to fraction form
    68,945.48/103,440.50 = 33,860.53/x
  3. Step 3: Cross multiply
    68,945.48x = 103,440.50 × 33,860.53
  4. Step 4: Simplify right side
    68,945.48x = 3,502,550,153.47
  5. Step 5: Solve for x
    x = 3,502,550,153.47/68,945.48
  6. Step 6: Final answer
    x = 50,801.74

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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.