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Finding the Fourth Proportional to 183,311.51, 252,704.80 and 128,697.41

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Solution

The fourth proportional to 183,311.51, 252,704.80 and 128,697.41 is: 177,416.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,311.51 : 252,704.80 = 128,697.41 : x
  2. Step 2: Convert to fraction form
    183,311.51/252,704.80 = 128,697.41/x
  3. Step 3: Cross multiply
    183,311.51x = 252,704.80 × 128,697.41
  4. Step 4: Simplify right side
    183,311.51x = 32,522,453,254.57
  5. Step 5: Solve for x
    x = 32,522,453,254.57/183,311.51
  6. Step 6: Final answer
    x = 177,416.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.