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Finding the Fourth Proportional to 108,951.84, 163,344.68 and 56,327.76

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Solution

The fourth proportional to 108,951.84, 163,344.68 and 56,327.76 is: 84,448.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,951.84 : 163,344.68 = 56,327.76 : x
  2. Step 2: Convert to fraction form
    108,951.84/163,344.68 = 56,327.76/x
  3. Step 3: Cross multiply
    108,951.84x = 163,344.68 × 56,327.76
  4. Step 4: Simplify right side
    108,951.84x = 9,200,839,932.32
  5. Step 5: Solve for x
    x = 9,200,839,932.32/108,951.84
  6. Step 6: Final answer
    x = 84,448.69

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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.