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Finding the Fourth Proportional to 107,148.56, 160,704.56 and 28,263.60

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Solution

The fourth proportional to 107,148.56, 160,704.56 and 28,263.60 is: 42,390.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,148.56 : 160,704.56 = 28,263.60 : x
  2. Step 2: Convert to fraction form
    107,148.56/160,704.56 = 28,263.60/x
  3. Step 3: Cross multiply
    107,148.56x = 160,704.56 × 28,263.60
  4. Step 4: Simplify right side
    107,148.56x = 4,542,089,402.02
  5. Step 5: Solve for x
    x = 4,542,089,402.02/107,148.56
  6. Step 6: Final answer
    x = 42,390.58

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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.