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Finding the Fourth Proportional to 132,788.88, 183,244.01 and 74,643.84

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Solution

The fourth proportional to 132,788.88, 183,244.01 and 74,643.84 is: 103,005.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,788.88 : 183,244.01 = 74,643.84 : x
  2. Step 2: Convert to fraction form
    132,788.88/183,244.01 = 74,643.84/x
  3. Step 3: Cross multiply
    132,788.88x = 183,244.01 × 74,643.84
  4. Step 4: Simplify right side
    132,788.88x = 13,678,036,190.18
  5. Step 5: Solve for x
    x = 13,678,036,190.18/132,788.88
  6. Step 6: Final answer
    x = 103,005.89

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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.