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Finding the Fourth Proportional to 93,703.66, 129,311.21 and 55,494.03

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Solution

The fourth proportional to 93,703.66, 129,311.21 and 55,494.03 is: 76,581.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,703.66 : 129,311.21 = 55,494.03 : x
  2. Step 2: Convert to fraction form
    93,703.66/129,311.21 = 55,494.03/x
  3. Step 3: Cross multiply
    93,703.66x = 129,311.21 × 55,494.03
  4. Step 4: Simplify right side
    93,703.66x = 7,175,999,889.61
  5. Step 5: Solve for x
    x = 7,175,999,889.61/93,703.66
  6. Step 6: Final answer
    x = 76,581.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.