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Finding the Fourth Proportional to 190,363.96, 262,703.82 and 105,482.44

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Solution

The fourth proportional to 190,363.96, 262,703.82 and 105,482.44 is: 145,566.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,363.96 : 262,703.82 = 105,482.44 : x
  2. Step 2: Convert to fraction form
    190,363.96/262,703.82 = 105,482.44/x
  3. Step 3: Cross multiply
    190,363.96x = 262,703.82 × 105,482.44
  4. Step 4: Simplify right side
    190,363.96x = 27,710,639,930.92
  5. Step 5: Solve for x
    x = 27,710,639,930.92/190,363.96
  6. Step 6: Final answer
    x = 145,566.63

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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.