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Finding the Fourth Proportional to 191,512.71, 264,295.71 and 106,629.75

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Solution

The fourth proportional to 191,512.71, 264,295.71 and 106,629.75 is: 147,153.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,512.71 : 264,295.71 = 106,629.75 : x
  2. Step 2: Convert to fraction form
    191,512.71/264,295.71 = 106,629.75/x
  3. Step 3: Cross multiply
    191,512.71x = 264,295.71 × 106,629.75
  4. Step 4: Simplify right side
    191,512.71x = 28,181,785,483.37
  5. Step 5: Solve for x
    x = 28,181,785,483.37/191,512.71
  6. Step 6: Final answer
    x = 147,153.60

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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.