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Finding the Fourth Proportional to 200,551.51, 276,763.29 and 109,905.55

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Solution

The fourth proportional to 200,551.51, 276,763.29 and 109,905.55 is: 151,670.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,551.51 : 276,763.29 = 109,905.55 : x
  2. Step 2: Convert to fraction form
    200,551.51/276,763.29 = 109,905.55/x
  3. Step 3: Cross multiply
    200,551.51x = 276,763.29 × 109,905.55
  4. Step 4: Simplify right side
    200,551.51x = 30,417,821,607.26
  5. Step 5: Solve for x
    x = 30,417,821,607.26/200,551.51
  6. Step 6: Final answer
    x = 151,670.87

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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.