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Finding the Fourth Proportional to 191,648.79, 287,474.31 and 49,484.37

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Solution

The fourth proportional to 191,648.79, 287,474.31 and 49,484.37 is: 74,226.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,648.79 : 287,474.31 = 49,484.37 : x
  2. Step 2: Convert to fraction form
    191,648.79/287,474.31 = 49,484.37/x
  3. Step 3: Cross multiply
    191,648.79x = 287,474.31 × 49,484.37
  4. Step 4: Simplify right side
    191,648.79x = 14,225,485,121.53
  5. Step 5: Solve for x
    x = 14,225,485,121.53/191,648.79
  6. Step 6: Final answer
    x = 74,226.85

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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.