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Finding the Fourth Proportional to 191,412.60, 287,160.41 and 58,289.37

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Solution

The fourth proportional to 191,412.60, 287,160.41 and 58,289.37 is: 87,446.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,412.60 : 287,160.41 = 58,289.37 : x
  2. Step 2: Convert to fraction form
    191,412.60/287,160.41 = 58,289.37/x
  3. Step 3: Cross multiply
    191,412.60x = 287,160.41 × 58,289.37
  4. Step 4: Simplify right side
    191,412.60x = 16,738,399,096.39
  5. Step 5: Solve for x
    x = 16,738,399,096.39/191,412.60
  6. Step 6: Final answer
    x = 87,446.69

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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.