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Finding the Fourth Proportional to 141,313.66, 195,010.66 and 77,650.09

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Solution

The fourth proportional to 141,313.66, 195,010.66 and 77,650.09 is: 107,155.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,313.66 : 195,010.66 = 77,650.09 : x
  2. Step 2: Convert to fraction form
    141,313.66/195,010.66 = 77,650.09/x
  3. Step 3: Cross multiply
    141,313.66x = 195,010.66 × 77,650.09
  4. Step 4: Simplify right side
    141,313.66x = 15,142,595,299.96
  5. Step 5: Solve for x
    x = 15,142,595,299.96/141,313.66
  6. Step 6: Final answer
    x = 107,155.92

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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.