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Finding the Fourth Proportional to 134,620.80, 201,493.80 and 104,877.60

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Solution

The fourth proportional to 134,620.80, 201,493.80 and 104,877.60 is: 156,975.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,620.80 : 201,493.80 = 104,877.60 : x
  2. Step 2: Convert to fraction form
    134,620.80/201,493.80 = 104,877.60/x
  3. Step 3: Cross multiply
    134,620.80x = 201,493.80 × 104,877.60
  4. Step 4: Simplify right side
    134,620.80x = 21,132,186,158.88
  5. Step 5: Solve for x
    x = 21,132,186,158.88/134,620.80
  6. Step 6: Final answer
    x = 156,975.64

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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.