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Finding the Fourth Proportional to 163,956.03, 245,934.05 and 45,636.60

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Solution

The fourth proportional to 163,956.03, 245,934.05 and 45,636.60 is: 68,454.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,956.03 : 245,934.05 = 45,636.60 : x
  2. Step 2: Convert to fraction form
    163,956.03/245,934.05 = 45,636.60/x
  3. Step 3: Cross multiply
    163,956.03x = 245,934.05 × 45,636.60
  4. Step 4: Simplify right side
    163,956.03x = 11,223,593,638.05
  5. Step 5: Solve for x
    x = 11,223,593,638.05/163,956.03
  6. Step 6: Final answer
    x = 68,454.90

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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.