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Finding the Fourth Proportional to 163,654.34, 225,823.14 and 91,040.06

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Solution

The fourth proportional to 163,654.34, 225,823.14 and 91,040.06 is: 125,624.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,654.34 : 225,823.14 = 91,040.06 : x
  2. Step 2: Convert to fraction form
    163,654.34/225,823.14 = 91,040.06/x
  3. Step 3: Cross multiply
    163,654.34x = 225,823.14 × 91,040.06
  4. Step 4: Simplify right side
    163,654.34x = 20,558,952,779.55
  5. Step 5: Solve for x
    x = 20,558,952,779.55/163,654.34
  6. Step 6: Final answer
    x = 125,624.25

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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.