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Finding the Fourth Proportional to 163,572.84, 225,729.45 and 91,953.45

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Solution

The fourth proportional to 163,572.84, 225,729.45 and 91,953.45 is: 126,895.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,572.84 : 225,729.45 = 91,953.45 : x
  2. Step 2: Convert to fraction form
    163,572.84/225,729.45 = 91,953.45/x
  3. Step 3: Cross multiply
    163,572.84x = 225,729.45 × 91,953.45
  4. Step 4: Simplify right side
    163,572.84x = 20,756,601,694.10
  5. Step 5: Solve for x
    x = 20,756,601,694.10/163,572.84
  6. Step 6: Final answer
    x = 126,895.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.