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Finding the Fourth Proportional to 113,808.40, 170,809.80 and 50,725.60

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Solution

The fourth proportional to 113,808.40, 170,809.80 and 50,725.60 is: 76,131.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,808.40 : 170,809.80 = 50,725.60 : x
  2. Step 2: Convert to fraction form
    113,808.40/170,809.80 = 50,725.60/x
  3. Step 3: Cross multiply
    113,808.40x = 170,809.80 × 50,725.60
  4. Step 4: Simplify right side
    113,808.40x = 8,664,429,590.88
  5. Step 5: Solve for x
    x = 8,664,429,590.88/113,808.40
  6. Step 6: Final answer
    x = 76,131.72

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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.