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Finding the Fourth Proportional to 349,364.50, 482,123.01 and 190,388.50

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Solution

The fourth proportional to 349,364.50, 482,123.01 and 190,388.50 is: 262,736.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,364.50 : 482,123.01 = 190,388.50 : x
  2. Step 2: Convert to fraction form
    349,364.50/482,123.01 = 190,388.50/x
  3. Step 3: Cross multiply
    349,364.50x = 482,123.01 × 190,388.50
  4. Step 4: Simplify right side
    349,364.50x = 91,790,676,689.39
  5. Step 5: Solve for x
    x = 91,790,676,689.39/349,364.50
  6. Step 6: Final answer
    x = 262,736.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.