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Finding the Fourth Proportional to 355,407.53, 533,204.75 and 127,726.13

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Solution

The fourth proportional to 355,407.53, 533,204.75 and 127,726.13 is: 191,622.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,407.53 : 533,204.75 = 127,726.13 : x
  2. Step 2: Convert to fraction form
    355,407.53/533,204.75 = 127,726.13/x
  3. Step 3: Cross multiply
    355,407.53x = 533,204.75 × 127,726.13
  4. Step 4: Simplify right side
    355,407.53x = 68,104,180,867.44
  5. Step 5: Solve for x
    x = 68,104,180,867.44/355,407.53
  6. Step 6: Final answer
    x = 191,622.79

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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.