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Finding the Fourth Proportional to 191,563.92, 287,353.97 and 56,628.29

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Solution

The fourth proportional to 191,563.92, 287,353.97 and 56,628.29 is: 84,944.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,563.92 : 287,353.97 = 56,628.29 : x
  2. Step 2: Convert to fraction form
    191,563.92/287,353.97 = 56,628.29/x
  3. Step 3: Cross multiply
    191,563.92x = 287,353.97 × 56,628.29
  4. Step 4: Simplify right side
    191,563.92x = 16,272,362,225.90
  5. Step 5: Solve for x
    x = 16,272,362,225.90/191,563.92
  6. Step 6: Final answer
    x = 84,944.82

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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.