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Finding the Fourth Proportional to 191,418.35, 287,153.79 and 65,024.66

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Solution

The fourth proportional to 191,418.35, 287,153.79 and 65,024.66 is: 97,545.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,418.35 : 287,153.79 = 65,024.66 : x
  2. Step 2: Convert to fraction form
    191,418.35/287,153.79 = 65,024.66/x
  3. Step 3: Cross multiply
    191,418.35x = 287,153.79 × 65,024.66
  4. Step 4: Simplify right side
    191,418.35x = 18,672,078,036.50
  5. Step 5: Solve for x
    x = 18,672,078,036.50/191,418.35
  6. Step 6: Final answer
    x = 97,545.92

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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.