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Finding the Fourth Proportional to 363,986.34, 546,057.27 and 127,336.74

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Solution

The fourth proportional to 363,986.34, 546,057.27 and 127,336.74 is: 191,032.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,986.34 : 546,057.27 = 127,336.74 : x
  2. Step 2: Convert to fraction form
    363,986.34/546,057.27 = 127,336.74/x
  3. Step 3: Cross multiply
    363,986.34x = 546,057.27 × 127,336.74
  4. Step 4: Simplify right side
    363,986.34x = 69,533,152,615.10
  5. Step 5: Solve for x
    x = 69,533,152,615.10/363,986.34
  6. Step 6: Final answer
    x = 191,032.31

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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.