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Finding the Fourth Proportional to 294,525, 441,787.50 and 72,909

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Solution

The fourth proportional to 294,525, 441,787.50 and 72,909 is: 109,363.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,525 : 441,787.50 = 72,909 : x
  2. Step 2: Convert to fraction form
    294,525/441,787.50 = 72,909/x
  3. Step 3: Cross multiply
    294,525x = 441,787.50 × 72,909
  4. Step 4: Simplify right side
    294,525x = 32,210,284,837.50
  5. Step 5: Solve for x
    x = 32,210,284,837.50/294,525
  6. Step 6: Final answer
    x = 109,363.50

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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.