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Finding the Fourth Proportional to 144,522.12, 216,787.02 and 39,343.24

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Solution

The fourth proportional to 144,522.12, 216,787.02 and 39,343.24 is: 59,015.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,522.12 : 216,787.02 = 39,343.24 : x
  2. Step 2: Convert to fraction form
    144,522.12/216,787.02 = 39,343.24/x
  3. Step 3: Cross multiply
    144,522.12x = 216,787.02 × 39,343.24
  4. Step 4: Simplify right side
    144,522.12x = 8,529,103,756.74
  5. Step 5: Solve for x
    x = 8,529,103,756.74/144,522.12
  6. Step 6: Final answer
    x = 59,015.91

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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.