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Finding the Fourth Proportional to 163,698.88, 245,548.32 and 108,281.92

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Solution

The fourth proportional to 163,698.88, 245,548.32 and 108,281.92 is: 162,422.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,698.88 : 245,548.32 = 108,281.92 : x
  2. Step 2: Convert to fraction form
    163,698.88/245,548.32 = 108,281.92/x
  3. Step 3: Cross multiply
    163,698.88x = 245,548.32 × 108,281.92
  4. Step 4: Simplify right side
    163,698.88x = 26,588,443,542.37
  5. Step 5: Solve for x
    x = 26,588,443,542.37/163,698.88
  6. Step 6: Final answer
    x = 162,422.88

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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.