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Finding the Fourth Proportional to 72,294.56, 108,420.98 and 24,907.72

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Solution

The fourth proportional to 72,294.56, 108,420.98 and 24,907.72 is: 37,354.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,294.56 : 108,420.98 = 24,907.72 : x
  2. Step 2: Convert to fraction form
    72,294.56/108,420.98 = 24,907.72/x
  3. Step 3: Cross multiply
    72,294.56x = 108,420.98 × 24,907.72
  4. Step 4: Simplify right side
    72,294.56x = 2,700,519,411.97
  5. Step 5: Solve for x
    x = 2,700,519,411.97/72,294.56
  6. Step 6: Final answer
    x = 37,354.39

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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.