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Finding the Fourth Proportional to 362,106.40, 543,208.20 and 125,521.60

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Solution

The fourth proportional to 362,106.40, 543,208.20 and 125,521.60 is: 188,299.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,106.40 : 543,208.20 = 125,521.60 : x
  2. Step 2: Convert to fraction form
    362,106.40/543,208.20 = 125,521.60/x
  3. Step 3: Cross multiply
    362,106.40x = 543,208.20 × 125,521.60
  4. Step 4: Simplify right side
    362,106.40x = 68,184,362,397.12
  5. Step 5: Solve for x
    x = 68,184,362,397.12/362,106.40
  6. Step 6: Final answer
    x = 188,299.25

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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.