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Finding the Fourth Proportional to 98,300.52, 147,448.62 and 28,180.44

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Solution

The fourth proportional to 98,300.52, 147,448.62 and 28,180.44 is: 42,270.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,300.52 : 147,448.62 = 28,180.44 : x
  2. Step 2: Convert to fraction form
    98,300.52/147,448.62 = 28,180.44/x
  3. Step 3: Cross multiply
    98,300.52x = 147,448.62 × 28,180.44
  4. Step 4: Simplify right side
    98,300.52x = 4,155,166,988.99
  5. Step 5: Solve for x
    x = 4,155,166,988.99/98,300.52
  6. Step 6: Final answer
    x = 42,270.04

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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.