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Finding the Fourth Proportional to 70,892.94, 106,372.35 and 28,802.04

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Solution

The fourth proportional to 70,892.94, 106,372.35 and 28,802.04 is: 43,216.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,892.94 : 106,372.35 = 28,802.04 : x
  2. Step 2: Convert to fraction form
    70,892.94/106,372.35 = 28,802.04/x
  3. Step 3: Cross multiply
    70,892.94x = 106,372.35 × 28,802.04
  4. Step 4: Simplify right side
    70,892.94x = 3,063,740,679.59
  5. Step 5: Solve for x
    x = 3,063,740,679.59/70,892.94
  6. Step 6: Final answer
    x = 43,216.44

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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.