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Finding the Fourth Proportional to 191,666.80, 287,542.49 and 58,557.44

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Solution

The fourth proportional to 191,666.80, 287,542.49 and 58,557.44 is: 87,849.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,666.80 : 287,542.49 = 58,557.44 : x
  2. Step 2: Convert to fraction form
    191,666.80/287,542.49 = 58,557.44/x
  3. Step 3: Cross multiply
    191,666.80x = 287,542.49 × 58,557.44
  4. Step 4: Simplify right side
    191,666.80x = 16,837,751,322.31
  5. Step 5: Solve for x
    x = 16,837,751,322.31/191,666.80
  6. Step 6: Final answer
    x = 87,849.08

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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.