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Finding the Fourth Proportional to 134,493.40, 201,885.90 and 84,629.80

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Solution

The fourth proportional to 134,493.40, 201,885.90 and 84,629.80 is: 127,036.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,493.40 : 201,885.90 = 84,629.80 : x
  2. Step 2: Convert to fraction form
    134,493.40/201,885.90 = 84,629.80/x
  3. Step 3: Cross multiply
    134,493.40x = 201,885.90 × 84,629.80
  4. Step 4: Simplify right side
    134,493.40x = 17,085,563,339.82
  5. Step 5: Solve for x
    x = 17,085,563,339.82/134,493.40
  6. Step 6: Final answer
    x = 127,036.44

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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.