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Finding the Fourth Proportional to 114,099.60, 171,095.40 and 66,728.40

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Solution

The fourth proportional to 114,099.60, 171,095.40 and 66,728.40 is: 100,061.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,099.60 : 171,095.40 = 66,728.40 : x
  2. Step 2: Convert to fraction form
    114,099.60/171,095.40 = 66,728.40/x
  3. Step 3: Cross multiply
    114,099.60x = 171,095.40 × 66,728.40
  4. Step 4: Simplify right side
    114,099.60x = 11,416,922,289.36
  5. Step 5: Solve for x
    x = 11,416,922,289.36/114,099.60
  6. Step 6: Final answer
    x = 100,061.02

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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.