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Finding the Fourth Proportional to 73,317.76, 101,178.45 and 39,783.76

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Solution

The fourth proportional to 73,317.76, 101,178.45 and 39,783.76 is: 54,901.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,317.76 : 101,178.45 = 39,783.76 : x
  2. Step 2: Convert to fraction form
    73,317.76/101,178.45 = 39,783.76/x
  3. Step 3: Cross multiply
    73,317.76x = 101,178.45 × 39,783.76
  4. Step 4: Simplify right side
    73,317.76x = 4,025,258,919.03
  5. Step 5: Solve for x
    x = 4,025,258,919.03/73,317.76
  6. Step 6: Final answer
    x = 54,901.56

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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.