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Finding the Fourth Proportional to 96,665.60, 144,940.80 and 50,009.60

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Solution

The fourth proportional to 96,665.60, 144,940.80 and 50,009.60 is: 74,984.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,665.60 : 144,940.80 = 50,009.60 : x
  2. Step 2: Convert to fraction form
    96,665.60/144,940.80 = 50,009.60/x
  3. Step 3: Cross multiply
    96,665.60x = 144,940.80 × 50,009.60
  4. Step 4: Simplify right side
    96,665.60x = 7,248,431,431.68
  5. Step 5: Solve for x
    x = 7,248,431,431.68/96,665.60
  6. Step 6: Final answer
    x = 74,984.60

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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.