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Finding the Fourth Proportional to 125,419.60, 188,436.60 and 94,315.60

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Solution

The fourth proportional to 125,419.60, 188,436.60 and 94,315.60 is: 141,704.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,419.60 : 188,436.60 = 94,315.60 : x
  2. Step 2: Convert to fraction form
    125,419.60/188,436.60 = 94,315.60/x
  3. Step 3: Cross multiply
    125,419.60x = 188,436.60 × 94,315.60
  4. Step 4: Simplify right side
    125,419.60x = 17,772,510,990.96
  5. Step 5: Solve for x
    x = 17,772,510,990.96/125,419.60
  6. Step 6: Final answer
    x = 141,704.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.