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Finding the Fourth Proportional to 191,562.42, 287,351.72 and 56,626.79

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Solution

The fourth proportional to 191,562.42, 287,351.72 and 56,626.79 is: 84,942.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,562.42 : 287,351.72 = 56,626.79 : x
  2. Step 2: Convert to fraction form
    191,562.42/287,351.72 = 56,626.79/x
  3. Step 3: Cross multiply
    191,562.42x = 287,351.72 × 56,626.79
  4. Step 4: Simplify right side
    191,562.42x = 16,271,803,784.69
  5. Step 5: Solve for x
    x = 16,271,803,784.69/191,562.42
  6. Step 6: Final answer
    x = 84,942.57

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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.