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Finding the Fourth Proportional to 132,995.88, 183,531.96 and 72,567

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Solution

The fourth proportional to 132,995.88, 183,531.96 and 72,567 is: 100,141.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,995.88 : 183,531.96 = 72,567 : x
  2. Step 2: Convert to fraction form
    132,995.88/183,531.96 = 72,567/x
  3. Step 3: Cross multiply
    132,995.88x = 183,531.96 × 72,567
  4. Step 4: Simplify right side
    132,995.88x = 13,318,363,741.32
  5. Step 5: Solve for x
    x = 13,318,363,741.32/132,995.88
  6. Step 6: Final answer
    x = 100,141.18

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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.