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Finding the Fourth Proportional to 351,009.11, 484,392.63 and 189,864.11

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Solution

The fourth proportional to 351,009.11, 484,392.63 and 189,864.11 is: 262,012.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,009.11 : 484,392.63 = 189,864.11 : x
  2. Step 2: Convert to fraction form
    351,009.11/484,392.63 = 189,864.11/x
  3. Step 3: Cross multiply
    351,009.11x = 484,392.63 × 189,864.11
  4. Step 4: Simplify right side
    351,009.11x = 91,968,775,585.51
  5. Step 5: Solve for x
    x = 91,968,775,585.51/351,009.11
  6. Step 6: Final answer
    x = 262,012.50

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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.