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Finding the Fourth Proportional to 129,698.40, 194,396.40 and 59,584.80

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Solution

The fourth proportional to 129,698.40, 194,396.40 and 59,584.80 is: 89,307.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,698.40 : 194,396.40 = 59,584.80 : x
  2. Step 2: Convert to fraction form
    129,698.40/194,396.40 = 59,584.80/x
  3. Step 3: Cross multiply
    129,698.40x = 194,396.40 × 59,584.80
  4. Step 4: Simplify right side
    129,698.40x = 11,583,070,614.72
  5. Step 5: Solve for x
    x = 11,583,070,614.72/129,698.40
  6. Step 6: Final answer
    x = 89,307.74

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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.