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Finding the Fourth Proportional to 343,794.77, 474,386.21 and 190,834.13

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Solution

The fourth proportional to 343,794.77, 474,386.21 and 190,834.13 is: 263,323.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,794.77 : 474,386.21 = 190,834.13 : x
  2. Step 2: Convert to fraction form
    343,794.77/474,386.21 = 190,834.13/x
  3. Step 3: Cross multiply
    343,794.77x = 474,386.21 × 190,834.13
  4. Step 4: Simplify right side
    343,794.77x = 90,529,079,901.14
  5. Step 5: Solve for x
    x = 90,529,079,901.14/343,794.77
  6. Step 6: Final answer
    x = 263,323.03

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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.