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Finding the Fourth Proportional to 114,131.63, 170,864.33 and 66,601.07

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Solution

The fourth proportional to 114,131.63, 170,864.33 and 66,601.07 is: 99,707.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,131.63 : 170,864.33 = 66,601.07 : x
  2. Step 2: Convert to fraction form
    114,131.63/170,864.33 = 66,601.07/x
  3. Step 3: Cross multiply
    114,131.63x = 170,864.33 × 66,601.07
  4. Step 4: Simplify right side
    114,131.63x = 11,379,746,869.83
  5. Step 5: Solve for x
    x = 11,379,746,869.83/114,131.63
  6. Step 6: Final answer
    x = 99,707.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.