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Finding the Fourth Proportional to 302,186.84, 453,354.78 and 91,813.64

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Solution

The fourth proportional to 302,186.84, 453,354.78 and 91,813.64 is: 137,743.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,186.84 : 453,354.78 = 91,813.64 : x
  2. Step 2: Convert to fraction form
    302,186.84/453,354.78 = 91,813.64/x
  3. Step 3: Cross multiply
    302,186.84x = 453,354.78 × 91,813.64
  4. Step 4: Simplify right side
    302,186.84x = 41,624,152,563.20
  5. Step 5: Solve for x
    x = 41,624,152,563.20/302,186.84
  6. Step 6: Final answer
    x = 137,743.10

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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.