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Finding the Fourth Proportional to 351,085.29, 484,501.21 and 189,943.81

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Solution

The fourth proportional to 351,085.29, 484,501.21 and 189,943.81 is: 262,124.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,085.29 : 484,501.21 = 189,943.81 : x
  2. Step 2: Convert to fraction form
    351,085.29/484,501.21 = 189,943.81/x
  3. Step 3: Cross multiply
    351,085.29x = 484,501.21 × 189,943.81
  4. Step 4: Simplify right side
    351,085.29x = 92,028,004,090.90
  5. Step 5: Solve for x
    x = 92,028,004,090.90/351,085.29
  6. Step 6: Final answer
    x = 262,124.35

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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.