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Finding the Fourth Proportional to 118,034.68, 162,868.80 and 70,286.80

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Solution

The fourth proportional to 118,034.68, 162,868.80 and 70,286.80 is: 96,984.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,034.68 : 162,868.80 = 70,286.80 : x
  2. Step 2: Convert to fraction form
    118,034.68/162,868.80 = 70,286.80/x
  3. Step 3: Cross multiply
    118,034.68x = 162,868.80 × 70,286.80
  4. Step 4: Simplify right side
    118,034.68x = 11,447,526,771.84
  5. Step 5: Solve for x
    x = 11,447,526,771.84/118,034.68
  6. Step 6: Final answer
    x = 96,984.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.