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Finding the Fourth Proportional to 98,553.40, 147,840.40 and 45,236.27

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Solution

The fourth proportional to 98,553.40, 147,840.40 and 45,236.27 is: 67,859.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,553.40 : 147,840.40 = 45,236.27 : x
  2. Step 2: Convert to fraction form
    98,553.40/147,840.40 = 45,236.27/x
  3. Step 3: Cross multiply
    98,553.40x = 147,840.40 × 45,236.27
  4. Step 4: Simplify right side
    98,553.40x = 6,687,748,741.07
  5. Step 5: Solve for x
    x = 6,687,748,741.07/98,553.40
  6. Step 6: Final answer
    x = 67,859.14

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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.