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Finding the Fourth Proportional to 73,783.44, 101,821.32 and 40,251.60

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Solution

The fourth proportional to 73,783.44, 101,821.32 and 40,251.60 is: 55,547.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,783.44 : 101,821.32 = 40,251.60 : x
  2. Step 2: Convert to fraction form
    73,783.44/101,821.32 = 40,251.60/x
  3. Step 3: Cross multiply
    73,783.44x = 101,821.32 × 40,251.60
  4. Step 4: Simplify right side
    73,783.44x = 4,098,471,044.11
  5. Step 5: Solve for x
    x = 4,098,471,044.11/73,783.44
  6. Step 6: Final answer
    x = 55,547.30

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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.