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Finding the Fourth Proportional to 108,014.46, 149,052.87 and 67,726.50

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Solution

The fourth proportional to 108,014.46, 149,052.87 and 67,726.50 is: 93,458.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,014.46 : 149,052.87 = 67,726.50 : x
  2. Step 2: Convert to fraction form
    108,014.46/149,052.87 = 67,726.50/x
  3. Step 3: Cross multiply
    108,014.46x = 149,052.87 × 67,726.50
  4. Step 4: Simplify right side
    108,014.46x = 10,094,829,200.06
  5. Step 5: Solve for x
    x = 10,094,829,200.06/108,014.46
  6. Step 6: Final answer
    x = 93,458.13

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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.