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Finding the Fourth Proportional to 98,553.80, 147,798.30 and 36,216.20

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Solution

The fourth proportional to 98,553.80, 147,798.30 and 36,216.20 is: 54,312.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,553.80 : 147,798.30 = 36,216.20 : x
  2. Step 2: Convert to fraction form
    98,553.80/147,798.30 = 36,216.20/x
  3. Step 3: Cross multiply
    98,553.80x = 147,798.30 × 36,216.20
  4. Step 4: Simplify right side
    98,553.80x = 5,352,692,792.46
  5. Step 5: Solve for x
    x = 5,352,692,792.46/98,553.80
  6. Step 6: Final answer
    x = 54,312.39

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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.