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Finding the Fourth Proportional to 101,767.81, 140,456.39 and 56,460.39

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Solution

The fourth proportional to 101,767.81, 140,456.39 and 56,460.39 is: 77,924.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,767.81 : 140,456.39 = 56,460.39 : x
  2. Step 2: Convert to fraction form
    101,767.81/140,456.39 = 56,460.39/x
  3. Step 3: Cross multiply
    101,767.81x = 140,456.39 × 56,460.39
  4. Step 4: Simplify right side
    101,767.81x = 7,930,222,491.02
  5. Step 5: Solve for x
    x = 7,930,222,491.02/101,767.81
  6. Step 6: Final answer
    x = 77,924.67

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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.