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Finding the Fourth Proportional to 107,155.77, 160,806.21 and 43,987.24

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Solution

The fourth proportional to 107,155.77, 160,806.21 and 43,987.24 is: 66,010.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,155.77 : 160,806.21 = 43,987.24 : x
  2. Step 2: Convert to fraction form
    107,155.77/160,806.21 = 43,987.24/x
  3. Step 3: Cross multiply
    107,155.77x = 160,806.21 × 43,987.24
  4. Step 4: Simplify right side
    107,155.77x = 7,073,421,352.76
  5. Step 5: Solve for x
    x = 7,073,421,352.76/107,155.77
  6. Step 6: Final answer
    x = 66,010.64

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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.