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Finding the Fourth Proportional to 354,475.40, 531,972.30 and 236,107.40

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Solution

The fourth proportional to 354,475.40, 531,972.30 and 236,107.40 is: 354,333.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,475.40 : 531,972.30 = 236,107.40 : x
  2. Step 2: Convert to fraction form
    354,475.40/531,972.30 = 236,107.40/x
  3. Step 3: Cross multiply
    354,475.40x = 531,972.30 × 236,107.40
  4. Step 4: Simplify right side
    354,475.40x = 125,602,596,625.02
  5. Step 5: Solve for x
    x = 125,602,596,625.02/354,475.40
  6. Step 6: Final answer
    x = 354,333.75

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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.