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Finding the Fourth Proportional to 163,896.96, 245,806.56 and 45,572.16

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Solution

The fourth proportional to 163,896.96, 245,806.56 and 45,572.16 is: 68,347.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,896.96 : 245,806.56 = 45,572.16 : x
  2. Step 2: Convert to fraction form
    163,896.96/245,806.56 = 45,572.16/x
  3. Step 3: Cross multiply
    163,896.96x = 245,806.56 × 45,572.16
  4. Step 4: Simplify right side
    163,896.96x = 11,201,935,881.37
  5. Step 5: Solve for x
    x = 11,201,935,881.37/163,896.96
  6. Step 6: Final answer
    x = 68,347.43

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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.