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Finding the Fourth Proportional to 302,187.84, 453,356.28 and 91,814.64

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Solution

The fourth proportional to 302,187.84, 453,356.28 and 91,814.64 is: 137,744.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,187.84 : 453,356.28 = 91,814.64 : x
  2. Step 2: Convert to fraction form
    302,187.84/453,356.28 = 91,814.64/x
  3. Step 3: Cross multiply
    302,187.84x = 453,356.28 × 91,814.64
  4. Step 4: Simplify right side
    302,187.84x = 41,624,743,639.94
  5. Step 5: Solve for x
    x = 41,624,743,639.94/302,187.84
  6. Step 6: Final answer
    x = 137,744.60

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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.