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Finding the Fourth Proportional to 116,603.12, 160,920.44 and 65,620.73

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Solution

The fourth proportional to 116,603.12, 160,920.44 and 65,620.73 is: 90,561.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,603.12 : 160,920.44 = 65,620.73 : x
  2. Step 2: Convert to fraction form
    116,603.12/160,920.44 = 65,620.73/x
  3. Step 3: Cross multiply
    116,603.12x = 160,920.44 × 65,620.73
  4. Step 4: Simplify right side
    116,603.12x = 10,559,717,065.00
  5. Step 5: Solve for x
    x = 10,559,717,065.00/116,603.12
  6. Step 6: Final answer
    x = 90,561.19

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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.