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Finding the Fourth Proportional to 351,323.64, 526,662.54 and 126,629.10

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Solution

The fourth proportional to 351,323.64, 526,662.54 and 126,629.10 is: 189,827.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,323.64 : 526,662.54 = 126,629.10 : x
  2. Step 2: Convert to fraction form
    351,323.64/526,662.54 = 126,629.10/x
  3. Step 3: Cross multiply
    351,323.64x = 526,662.54 × 126,629.10
  4. Step 4: Simplify right side
    351,323.64x = 66,690,803,443.91
  5. Step 5: Solve for x
    x = 66,690,803,443.91/351,323.64
  6. Step 6: Final answer
    x = 189,827.26

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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.