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Finding the Fourth Proportional to 116,720.01, 160,879.95 and 82,684.89

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Solution

The fourth proportional to 116,720.01, 160,879.95 and 82,684.89 is: 113,967.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,720.01 : 160,879.95 = 82,684.89 : x
  2. Step 2: Convert to fraction form
    116,720.01/160,879.95 = 82,684.89/x
  3. Step 3: Cross multiply
    116,720.01x = 160,879.95 × 82,684.89
  4. Step 4: Simplify right side
    116,720.01x = 13,302,340,968.96
  5. Step 5: Solve for x
    x = 13,302,340,968.96/116,720.01
  6. Step 6: Final answer
    x = 113,967.96

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1.5x scale

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.