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Finding the Fourth Proportional to 191,593.92, 287,420.04 and 56,670.60

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Solution

The fourth proportional to 191,593.92, 287,420.04 and 56,670.60 is: 85,014.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,593.92 : 287,420.04 = 56,670.60 : x
  2. Step 2: Convert to fraction form
    191,593.92/287,420.04 = 56,670.60/x
  3. Step 3: Cross multiply
    191,593.92x = 287,420.04 × 56,670.60
  4. Step 4: Simplify right side
    191,593.92x = 16,288,266,118.82
  5. Step 5: Solve for x
    x = 16,288,266,118.82/191,593.92
  6. Step 6: Final answer
    x = 85,014.53

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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.