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Finding the Fourth Proportional to 235,865.06, 325,812.21 and 188,450.90

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Solution

The fourth proportional to 235,865.06, 325,812.21 and 188,450.90 is: 260,316.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,865.06 : 325,812.21 = 188,450.90 : x
  2. Step 2: Convert to fraction form
    235,865.06/325,812.21 = 188,450.90/x
  3. Step 3: Cross multiply
    235,865.06x = 325,812.21 × 188,450.90
  4. Step 4: Simplify right side
    235,865.06x = 61,399,604,205.49
  5. Step 5: Solve for x
    x = 61,399,604,205.49/235,865.06
  6. Step 6: Final answer
    x = 260,316.66

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1.5x scale

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.