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Finding the Fourth Proportional to 191,879.85, 287,793.85 and 51,646.89

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Solution

The fourth proportional to 191,879.85, 287,793.85 and 51,646.89 is: 77,463.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,879.85 : 287,793.85 = 51,646.89 : x
  2. Step 2: Convert to fraction form
    191,879.85/287,793.85 = 51,646.89/x
  3. Step 3: Cross multiply
    191,879.85x = 287,793.85 × 51,646.89
  4. Step 4: Simplify right side
    191,879.85x = 14,863,657,313.63
  5. Step 5: Solve for x
    x = 14,863,657,313.63/191,879.85
  6. Step 6: Final answer
    x = 77,463.36

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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.