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Finding the Fourth Proportional to 296,607.21, 444,907.09 and 71,969.50

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Solution

The fourth proportional to 296,607.21, 444,907.09 and 71,969.50 is: 107,953.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,607.21 : 444,907.09 = 71,969.50 : x
  2. Step 2: Convert to fraction form
    296,607.21/444,907.09 = 71,969.50/x
  3. Step 3: Cross multiply
    296,607.21x = 444,907.09 × 71,969.50
  4. Step 4: Simplify right side
    296,607.21x = 32,019,740,813.76
  5. Step 5: Solve for x
    x = 32,019,740,813.76/296,607.21
  6. Step 6: Final answer
    x = 107,953.35

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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.