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Finding the Fourth Proportional to 191,846.48, 287,769.84 and 51,619.28

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Solution

The fourth proportional to 191,846.48, 287,769.84 and 51,619.28 is: 77,428.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,846.48 : 287,769.84 = 51,619.28 : x
  2. Step 2: Convert to fraction form
    191,846.48/287,769.84 = 51,619.28/x
  3. Step 3: Cross multiply
    191,846.48x = 287,769.84 × 51,619.28
  4. Step 4: Simplify right side
    191,846.48x = 14,854,471,946.52
  5. Step 5: Solve for x
    x = 14,854,471,946.52/191,846.48
  6. Step 6: Final answer
    x = 77,428.95

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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.