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Finding the Fourth Proportional to 191,491.44, 287,256.81 and 73,262.22

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Solution

The fourth proportional to 191,491.44, 287,256.81 and 73,262.22 is: 109,900.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,491.44 : 287,256.81 = 73,262.22 : x
  2. Step 2: Convert to fraction form
    191,491.44/287,256.81 = 73,262.22/x
  3. Step 3: Cross multiply
    191,491.44x = 287,256.81 × 73,262.22
  4. Step 4: Simplify right side
    191,491.44x = 21,045,071,610.72
  5. Step 5: Solve for x
    x = 21,045,071,610.72/191,491.44
  6. Step 6: Final answer
    x = 109,900.85

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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.