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Finding the Fourth Proportional to 133,218, 183,840.84 and 73,602

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Solution

The fourth proportional to 133,218, 183,840.84 and 73,602 is: 101,570.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,218 : 183,840.84 = 73,602 : x
  2. Step 2: Convert to fraction form
    133,218/183,840.84 = 73,602/x
  3. Step 3: Cross multiply
    133,218x = 183,840.84 × 73,602
  4. Step 4: Simplify right side
    133,218x = 13,531,053,505.68
  5. Step 5: Solve for x
    x = 13,531,053,505.68/133,218
  6. Step 6: Final answer
    x = 101,570.76

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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.