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Finding the Fourth Proportional to 141,161.72, 194,800.76 and 77,499.08

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Solution

The fourth proportional to 141,161.72, 194,800.76 and 77,499.08 is: 106,947.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,161.72 : 194,800.76 = 77,499.08 : x
  2. Step 2: Convert to fraction form
    141,161.72/194,800.76 = 77,499.08/x
  3. Step 3: Cross multiply
    141,161.72x = 194,800.76 × 77,499.08
  4. Step 4: Simplify right side
    141,161.72x = 15,096,879,683.30
  5. Step 5: Solve for x
    x = 15,096,879,683.30/141,161.72
  6. Step 6: Final answer
    x = 106,947.41

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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.