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Finding the Fourth Proportional to 98,744.61, 148,047.80 and 36,398.37

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Solution

The fourth proportional to 98,744.61, 148,047.80 and 36,398.37 is: 54,572.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,744.61 : 148,047.80 = 36,398.37 : x
  2. Step 2: Convert to fraction form
    98,744.61/148,047.80 = 36,398.37/x
  3. Step 3: Cross multiply
    98,744.61x = 148,047.80 × 36,398.37
  4. Step 4: Simplify right side
    98,744.61x = 5,388,698,420.09
  5. Step 5: Solve for x
    x = 5,388,698,420.09/98,744.61
  6. Step 6: Final answer
    x = 54,572.08

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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.