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Finding the Fourth Proportional to 98,483.97, 147,704.36 and 28,348.05

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Solution

The fourth proportional to 98,483.97, 147,704.36 and 28,348.05 is: 42,515.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,483.97 : 147,704.36 = 28,348.05 : x
  2. Step 2: Convert to fraction form
    98,483.97/147,704.36 = 28,348.05/x
  3. Step 3: Cross multiply
    98,483.97x = 147,704.36 × 28,348.05
  4. Step 4: Simplify right side
    98,483.97x = 4,187,130,440.76
  5. Step 5: Solve for x
    x = 4,187,130,440.76/98,483.97
  6. Step 6: Final answer
    x = 42,515.86

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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.