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Finding the Fourth Proportional to 188,831.70, 283,575.60 and 100,258.20

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Solution

The fourth proportional to 188,831.70, 283,575.60 and 100,258.20 is: 150,561.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,831.70 : 283,575.60 = 100,258.20 : x
  2. Step 2: Convert to fraction form
    188,831.70/283,575.60 = 100,258.20/x
  3. Step 3: Cross multiply
    188,831.70x = 283,575.60 × 100,258.20
  4. Step 4: Simplify right side
    188,831.70x = 28,430,779,219.92
  5. Step 5: Solve for x
    x = 28,430,779,219.92/188,831.70
  6. Step 6: Final answer
    x = 150,561.47

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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.