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Finding the Fourth Proportional to 101,502.69, 140,073.98 and 56,183.79

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Solution

The fourth proportional to 101,502.69, 140,073.98 and 56,183.79 is: 77,533.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,502.69 : 140,073.98 = 56,183.79 : x
  2. Step 2: Convert to fraction form
    101,502.69/140,073.98 = 56,183.79/x
  3. Step 3: Cross multiply
    101,502.69x = 140,073.98 × 56,183.79
  4. Step 4: Simplify right side
    101,502.69x = 7,869,887,076.78
  5. Step 5: Solve for x
    x = 7,869,887,076.78/101,502.69
  6. Step 6: Final answer
    x = 77,533.78

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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.