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Finding the Fourth Proportional to 191,554.92, 287,345.88 and 56,617.38

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Solution

The fourth proportional to 191,554.92, 287,345.88 and 56,617.38 is: 84,930.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,554.92 : 287,345.88 = 56,617.38 : x
  2. Step 2: Convert to fraction form
    191,554.92/287,345.88 = 56,617.38/x
  3. Step 3: Cross multiply
    191,554.92x = 287,345.88 × 56,617.38
  4. Step 4: Simplify right side
    191,554.92x = 16,268,770,879.39
  5. Step 5: Solve for x
    x = 16,268,770,879.39/191,554.92
  6. Step 6: Final answer
    x = 84,930.06

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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.