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Finding the Fourth Proportional to 362,063.16, 543,131.70 and 125,405.40

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Solution

The fourth proportional to 362,063.16, 543,131.70 and 125,405.40 is: 188,120.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,063.16 : 543,131.70 = 125,405.40 : x
  2. Step 2: Convert to fraction form
    362,063.16/543,131.70 = 125,405.40/x
  3. Step 3: Cross multiply
    362,063.16x = 543,131.70 × 125,405.40
  4. Step 4: Simplify right side
    362,063.16x = 68,111,648,091.18
  5. Step 5: Solve for x
    x = 68,111,648,091.18/362,063.16
  6. Step 6: Final answer
    x = 188,120.90

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1.5x scale

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.