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Finding the Fourth Proportional to 107,157.62, 160,720.62 and 28,277.39

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Solution

The fourth proportional to 107,157.62, 160,720.62 and 28,277.39 is: 42,411.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,157.62 : 160,720.62 = 28,277.39 : x
  2. Step 2: Convert to fraction form
    107,157.62/160,720.62 = 28,277.39/x
  3. Step 3: Cross multiply
    107,157.62x = 160,720.62 × 28,277.39
  4. Step 4: Simplify right side
    107,157.62x = 4,544,759,652.78
  5. Step 5: Solve for x
    x = 4,544,759,652.78/107,157.62
  6. Step 6: Final answer
    x = 42,411.91

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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.