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Finding the Fourth Proportional to 132,993.60, 183,531.36 and 72,564.52

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Solution

The fourth proportional to 132,993.60, 183,531.36 and 72,564.52 is: 100,139.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,993.60 : 183,531.36 = 72,564.52 : x
  2. Step 2: Convert to fraction form
    132,993.60/183,531.36 = 72,564.52/x
  3. Step 3: Cross multiply
    132,993.60x = 183,531.36 × 72,564.52
  4. Step 4: Simplify right side
    132,993.60x = 13,317,865,043.35
  5. Step 5: Solve for x
    x = 13,317,865,043.35/132,993.60
  6. Step 6: Final answer
    x = 100,139.14

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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.