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Finding the Fourth Proportional to 73,057.76, 109,601.40 and 30,937.76

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Solution

The fourth proportional to 73,057.76, 109,601.40 and 30,937.76 is: 46,412.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,057.76 : 109,601.40 = 30,937.76 : x
  2. Step 2: Convert to fraction form
    73,057.76/109,601.40 = 30,937.76/x
  3. Step 3: Cross multiply
    73,057.76x = 109,601.40 × 30,937.76
  4. Step 4: Simplify right side
    73,057.76x = 3,390,821,808.86
  5. Step 5: Solve for x
    x = 3,390,821,808.86/73,057.76
  6. Step 6: Final answer
    x = 46,412.89

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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.