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Finding the Fourth Proportional to 111,283.82, 153,568.33 and 63,527.84

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Solution

The fourth proportional to 111,283.82, 153,568.33 and 63,527.84 is: 87,666.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,283.82 : 153,568.33 = 63,527.84 : x
  2. Step 2: Convert to fraction form
    111,283.82/153,568.33 = 63,527.84/x
  3. Step 3: Cross multiply
    111,283.82x = 153,568.33 × 63,527.84
  4. Step 4: Simplify right side
    111,283.82x = 9,755,863,370.65
  5. Step 5: Solve for x
    x = 9,755,863,370.65/111,283.82
  6. Step 6: Final answer
    x = 87,666.51

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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.