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Finding the Fourth Proportional to 351,131.76, 526,697.64 and 164,274.48

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Solution

The fourth proportional to 351,131.76, 526,697.64 and 164,274.48 is: 246,411.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,131.76 : 526,697.64 = 164,274.48 : x
  2. Step 2: Convert to fraction form
    351,131.76/526,697.64 = 164,274.48/x
  3. Step 3: Cross multiply
    351,131.76x = 526,697.64 × 164,274.48
  4. Step 4: Simplify right side
    351,131.76x = 86,522,980,928.23
  5. Step 5: Solve for x
    x = 86,522,980,928.23/351,131.76
  6. Step 6: Final answer
    x = 246,411.72

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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.