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Finding the Fourth Proportional to 235,622.54, 325,155.53 and 128,190.12

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Solution

The fourth proportional to 235,622.54, 325,155.53 and 128,190.12 is: 176,900.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,622.54 : 325,155.53 = 128,190.12 : x
  2. Step 2: Convert to fraction form
    235,622.54/325,155.53 = 128,190.12/x
  3. Step 3: Cross multiply
    235,622.54x = 325,155.53 × 128,190.12
  4. Step 4: Simplify right side
    235,622.54x = 41,681,726,409.36
  5. Step 5: Solve for x
    x = 41,681,726,409.36/235,622.54
  6. Step 6: Final answer
    x = 176,900.42

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.