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Finding the Fourth Proportional to 136,284.30, 204,037.65 and 83,796.30

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Solution

The fourth proportional to 136,284.30, 204,037.65 and 83,796.30 is: 125,455.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,284.30 : 204,037.65 = 83,796.30 : x
  2. Step 2: Convert to fraction form
    136,284.30/204,037.65 = 83,796.30/x
  3. Step 3: Cross multiply
    136,284.30x = 204,037.65 × 83,796.30
  4. Step 4: Simplify right side
    136,284.30x = 17,097,600,130.70
  5. Step 5: Solve for x
    x = 17,097,600,130.70/136,284.30
  6. Step 6: Final answer
    x = 125,455.39

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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.