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Finding the Fourth Proportional to 73,287.40, 101,137.06 and 39,753.48

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Solution

The fourth proportional to 73,287.40, 101,137.06 and 39,753.48 is: 54,860.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,287.40 : 101,137.06 = 39,753.48 : x
  2. Step 2: Convert to fraction form
    73,287.40/101,137.06 = 39,753.48/x
  3. Step 3: Cross multiply
    73,287.40x = 101,137.06 × 39,753.48
  4. Step 4: Simplify right side
    73,287.40x = 4,020,550,091.97
  5. Step 5: Solve for x
    x = 4,020,550,091.97/73,287.40
  6. Step 6: Final answer
    x = 54,860.05

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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.