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Finding the Fourth Proportional to 104,636.80, 156,955.20 and 55,484.80

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Solution

The fourth proportional to 104,636.80, 156,955.20 and 55,484.80 is: 83,227.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,636.80 : 156,955.20 = 55,484.80 : x
  2. Step 2: Convert to fraction form
    104,636.80/156,955.20 = 55,484.80/x
  3. Step 3: Cross multiply
    104,636.80x = 156,955.20 × 55,484.80
  4. Step 4: Simplify right side
    104,636.80x = 8,708,627,880.96
  5. Step 5: Solve for x
    x = 8,708,627,880.96/104,636.80
  6. Step 6: Final answer
    x = 83,227.20

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1.5x scale

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.