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Finding the Fourth Proportional to 200,485.36, 276,666.48 and 109,840.48

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Solution

The fourth proportional to 200,485.36, 276,666.48 and 109,840.48 is: 151,578.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,485.36 : 276,666.48 = 109,840.48 : x
  2. Step 2: Convert to fraction form
    200,485.36/276,666.48 = 109,840.48/x
  3. Step 3: Cross multiply
    200,485.36x = 276,666.48 × 109,840.48
  4. Step 4: Simplify right side
    200,485.36x = 30,389,178,963.11
  5. Step 5: Solve for x
    x = 30,389,178,963.11/200,485.36
  6. Step 6: Final answer
    x = 151,578.05

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1.5x scale

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.