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Finding the Fourth Proportional to 98,416.48, 147,553.48 and 38,394.12

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Solution

The fourth proportional to 98,416.48, 147,553.48 and 38,394.12 is: 57,563.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,416.48 : 147,553.48 = 38,394.12 : x
  2. Step 2: Convert to fraction form
    98,416.48/147,553.48 = 38,394.12/x
  3. Step 3: Cross multiply
    98,416.48x = 147,553.48 × 38,394.12
  4. Step 4: Simplify right side
    98,416.48x = 5,665,186,017.54
  5. Step 5: Solve for x
    x = 5,665,186,017.54/98,416.48
  6. Step 6: Final answer
    x = 57,563.39

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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.