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Finding the Fourth Proportional to 191,418.29, 287,153.70 and 65,024.60

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Solution

The fourth proportional to 191,418.29, 287,153.70 and 65,024.60 is: 97,545.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,418.29 : 287,153.70 = 65,024.60 : x
  2. Step 2: Convert to fraction form
    191,418.29/287,153.70 = 65,024.60/x
  3. Step 3: Cross multiply
    191,418.29x = 287,153.70 × 65,024.60
  4. Step 4: Simplify right side
    191,418.29x = 18,672,054,481.02
  5. Step 5: Solve for x
    x = 18,672,054,481.02/191,418.29
  6. Step 6: Final answer
    x = 97,545.82

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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.