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Finding the Fourth Proportional to 243,543, 365,423.94 and 154,773.48

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Solution

The fourth proportional to 243,543, 365,423.94 and 154,773.48 is: 232,229.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,543 : 365,423.94 = 154,773.48 : x
  2. Step 2: Convert to fraction form
    243,543/365,423.94 = 154,773.48/x
  3. Step 3: Cross multiply
    243,543x = 365,423.94 × 154,773.48
  4. Step 4: Simplify right side
    243,543x = 56,557,934,869.11
  5. Step 5: Solve for x
    x = 56,557,934,869.11/243,543
  6. Step 6: Final answer
    x = 232,229.77

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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.