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Finding the Fourth Proportional to 103,953.60, 155,930.40 and 96,080.40

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Solution

The fourth proportional to 103,953.60, 155,930.40 and 96,080.40 is: 144,120.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,953.60 : 155,930.40 = 96,080.40 : x
  2. Step 2: Convert to fraction form
    103,953.60/155,930.40 = 96,080.40/x
  3. Step 3: Cross multiply
    103,953.60x = 155,930.40 × 96,080.40
  4. Step 4: Simplify right side
    103,953.60x = 14,981,855,204.16
  5. Step 5: Solve for x
    x = 14,981,855,204.16/103,953.60
  6. Step 6: Final answer
    x = 144,120.60

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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.