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Finding the Fourth Proportional to 201,553.10, 302,329.65 and 73,479

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Solution

The fourth proportional to 201,553.10, 302,329.65 and 73,479 is: 110,218.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,553.10 : 302,329.65 = 73,479 : x
  2. Step 2: Convert to fraction form
    201,553.10/302,329.65 = 73,479/x
  3. Step 3: Cross multiply
    201,553.10x = 302,329.65 × 73,479
  4. Step 4: Simplify right side
    201,553.10x = 22,214,880,352.35
  5. Step 5: Solve for x
    x = 22,214,880,352.35/201,553.10
  6. Step 6: Final answer
    x = 110,218.50

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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.