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Finding the Fourth Proportional to 98,672.62, 148,033.22 and 28,559.02

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Solution

The fourth proportional to 98,672.62, 148,033.22 and 28,559.02 is: 42,845.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,672.62 : 148,033.22 = 28,559.02 : x
  2. Step 2: Convert to fraction form
    98,672.62/148,033.22 = 28,559.02/x
  3. Step 3: Cross multiply
    98,672.62x = 148,033.22 × 28,559.02
  4. Step 4: Simplify right side
    98,672.62x = 4,227,683,690.64
  5. Step 5: Solve for x
    x = 4,227,683,690.64/98,672.62
  6. Step 6: Final answer
    x = 42,845.56

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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.