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Finding the Fourth Proportional to 98,309.92, 147,381.36 and 45,749.92

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Solution

The fourth proportional to 98,309.92, 147,381.36 and 45,749.92 is: 68,586.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,309.92 : 147,381.36 = 45,749.92 : x
  2. Step 2: Convert to fraction form
    98,309.92/147,381.36 = 45,749.92/x
  3. Step 3: Cross multiply
    98,309.92x = 147,381.36 × 45,749.92
  4. Step 4: Simplify right side
    98,309.92x = 6,742,685,429.49
  5. Step 5: Solve for x
    x = 6,742,685,429.49/98,309.92
  6. Step 6: Final answer
    x = 68,586.01

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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.