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Finding the Fourth Proportional to 132,573.94, 182,739.18 and 89,539.60

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Solution

The fourth proportional to 132,573.94, 182,739.18 and 89,539.60 is: 123,420.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,573.94 : 182,739.18 = 89,539.60 : x
  2. Step 2: Convert to fraction form
    132,573.94/182,739.18 = 89,539.60/x
  3. Step 3: Cross multiply
    132,573.94x = 182,739.18 × 89,539.60
  4. Step 4: Simplify right side
    132,573.94x = 16,362,393,081.53
  5. Step 5: Solve for x
    x = 16,362,393,081.53/132,573.94
  6. Step 6: Final answer
    x = 123,420.89

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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.