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Finding the Fourth Proportional to 495,661.95, 743,491.55 and 140,676.32

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Solution

The fourth proportional to 495,661.95, 743,491.55 and 140,676.32 is: 211,014.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,661.95 : 743,491.55 = 140,676.32 : x
  2. Step 2: Convert to fraction form
    495,661.95/743,491.55 = 140,676.32/x
  3. Step 3: Cross multiply
    495,661.95x = 743,491.55 × 140,676.32
  4. Step 4: Simplify right side
    495,661.95x = 104,591,650,784.26
  5. Step 5: Solve for x
    x = 104,591,650,784.26/495,661.95
  6. Step 6: Final answer
    x = 211,014.08

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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.