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Finding the Fourth Proportional to 190,477.20, 286,374.60 and 178,143.60

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Solution

The fourth proportional to 190,477.20, 286,374.60 and 178,143.60 is: 267,831.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,477.20 : 286,374.60 = 178,143.60 : x
  2. Step 2: Convert to fraction form
    190,477.20/286,374.60 = 178,143.60/x
  3. Step 3: Cross multiply
    190,477.20x = 286,374.60 × 178,143.60
  4. Step 4: Simplify right side
    190,477.20x = 51,015,802,192.56
  5. Step 5: Solve for x
    x = 51,015,802,192.56/190,477.20
  6. Step 6: Final answer
    x = 267,831.54

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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.