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Finding the Fourth Proportional to 119,173.09, 164,463.06 and 65,463.07

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Solution

The fourth proportional to 119,173.09, 164,463.06 and 65,463.07 is: 90,341.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,173.09 : 164,463.06 = 65,463.07 : x
  2. Step 2: Convert to fraction form
    119,173.09/164,463.06 = 65,463.07/x
  3. Step 3: Cross multiply
    119,173.09x = 164,463.06 × 65,463.07
  4. Step 4: Simplify right side
    119,173.09x = 10,766,256,809.19
  5. Step 5: Solve for x
    x = 10,766,256,809.19/119,173.09
  6. Step 6: Final answer
    x = 90,341.34

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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.