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Finding the Fourth Proportional to 162,698.84, 242,940.75 and 143,563.94

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Solution

The fourth proportional to 162,698.84, 242,940.75 and 143,563.94 is: 214,368.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,698.84 : 242,940.75 = 143,563.94 : x
  2. Step 2: Convert to fraction form
    162,698.84/242,940.75 = 143,563.94/x
  3. Step 3: Cross multiply
    162,698.84x = 242,940.75 × 143,563.94
  4. Step 4: Simplify right side
    162,698.84x = 34,877,531,256.56
  5. Step 5: Solve for x
    x = 34,877,531,256.56/162,698.84
  6. Step 6: Final answer
    x = 214,368.65

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.