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Finding the Fourth Proportional to 203,100.60, 304,703.46 and 118,931.88

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Solution

The fourth proportional to 203,100.60, 304,703.46 and 118,931.88 is: 178,428.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,100.60 : 304,703.46 = 118,931.88 : x
  2. Step 2: Convert to fraction form
    203,100.60/304,703.46 = 118,931.88/x
  3. Step 3: Cross multiply
    203,100.60x = 304,703.46 × 118,931.88
  4. Step 4: Simplify right side
    203,100.60x = 36,238,955,340.30
  5. Step 5: Solve for x
    x = 36,238,955,340.30/203,100.60
  6. Step 6: Final answer
    x = 178,428.60

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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.