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Finding the Fourth Proportional to 175,903.40, 263,358.30 and 136,915.40

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Solution

The fourth proportional to 175,903.40, 263,358.30 and 136,915.40 is: 204,986.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,903.40 : 263,358.30 = 136,915.40 : x
  2. Step 2: Convert to fraction form
    175,903.40/263,358.30 = 136,915.40/x
  3. Step 3: Cross multiply
    175,903.40x = 263,358.30 × 136,915.40
  4. Step 4: Simplify right side
    175,903.40x = 36,057,806,987.82
  5. Step 5: Solve for x
    x = 36,057,806,987.82/175,903.40
  6. Step 6: Final answer
    x = 204,986.41

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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.