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Finding the Fourth Proportional to 203,322.64, 304,880.28 and 84,962.20

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Solution

The fourth proportional to 203,322.64, 304,880.28 and 84,962.20 is: 127,399.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,322.64 : 304,880.28 = 84,962.20 : x
  2. Step 2: Convert to fraction form
    203,322.64/304,880.28 = 84,962.20/x
  3. Step 3: Cross multiply
    203,322.64x = 304,880.28 × 84,962.20
  4. Step 4: Simplify right side
    203,322.64x = 25,903,299,325.42
  5. Step 5: Solve for x
    x = 25,903,299,325.42/203,322.64
  6. Step 6: Final answer
    x = 127,399.98

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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.