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Finding the Fourth Proportional to 141,324, 212,083.20 and 58,218

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Solution

The fourth proportional to 141,324, 212,083.20 and 58,218 is: 87,367.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,324 : 212,083.20 = 58,218 : x
  2. Step 2: Convert to fraction form
    141,324/212,083.20 = 58,218/x
  3. Step 3: Cross multiply
    141,324x = 212,083.20 × 58,218
  4. Step 4: Simplify right side
    141,324x = 12,347,059,737.60
  5. Step 5: Solve for x
    x = 12,347,059,737.60/141,324
  6. Step 6: Final answer
    x = 87,367.04

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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.