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Finding the Fourth Proportional to 109,271.60, 163,615.80 and 109,271.60

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Solution

The fourth proportional to 109,271.60, 163,615.80 and 109,271.60 is: 163,615.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,271.60 : 163,615.80 = 109,271.60 : x
  2. Step 2: Convert to fraction form
    109,271.60/163,615.80 = 109,271.60/x
  3. Step 3: Cross multiply
    109,271.60x = 163,615.80 × 109,271.60
  4. Step 4: Simplify right side
    109,271.60x = 17,878,560,251.28
  5. Step 5: Solve for x
    x = 17,878,560,251.28/109,271.60
  6. Step 6: Final answer
    x = 163,615.80

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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.