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Finding the Fourth Proportional to 116,445.60, 160,603.92 and 98,589.60

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Solution

The fourth proportional to 116,445.60, 160,603.92 and 98,589.60 is: 135,976.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,445.60 : 160,603.92 = 98,589.60 : x
  2. Step 2: Convert to fraction form
    116,445.60/160,603.92 = 98,589.60/x
  3. Step 3: Cross multiply
    116,445.60x = 160,603.92 × 98,589.60
  4. Step 4: Simplify right side
    116,445.60x = 15,833,876,231.23
  5. Step 5: Solve for x
    x = 15,833,876,231.23/116,445.60
  6. Step 6: Final answer
    x = 135,976.60

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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.