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Finding the Fourth Proportional to 190,894.76, 263,437.95 and 104,861.72

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Solution

The fourth proportional to 190,894.76, 263,437.95 and 104,861.72 is: 144,710.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,894.76 : 263,437.95 = 104,861.72 : x
  2. Step 2: Convert to fraction form
    190,894.76/263,437.95 = 104,861.72/x
  3. Step 3: Cross multiply
    190,894.76x = 263,437.95 × 104,861.72
  4. Step 4: Simplify right side
    190,894.76x = 27,624,556,550.27
  5. Step 5: Solve for x
    x = 27,624,556,550.27/190,894.76
  6. Step 6: Final answer
    x = 144,710.92

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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.