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Finding the Fourth Proportional to 200,554.74, 300,536.73 and 111,686.13

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Solution

The fourth proportional to 200,554.74, 300,536.73 and 111,686.13 is: 167,364.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,554.74 : 300,536.73 = 111,686.13 : x
  2. Step 2: Convert to fraction form
    200,554.74/300,536.73 = 111,686.13/x
  3. Step 3: Cross multiply
    200,554.74x = 300,536.73 × 111,686.13
  4. Step 4: Simplify right side
    200,554.74x = 33,565,784,296.55
  5. Step 5: Solve for x
    x = 33,565,784,296.55/200,554.74
  6. Step 6: Final answer
    x = 167,364.70

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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.