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Finding the Fourth Proportional to 128,567.40, 192,851.10 and 33,797.40

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Solution

The fourth proportional to 128,567.40, 192,851.10 and 33,797.40 is: 50,696.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,567.40 : 192,851.10 = 33,797.40 : x
  2. Step 2: Convert to fraction form
    128,567.40/192,851.10 = 33,797.40/x
  3. Step 3: Cross multiply
    128,567.40x = 192,851.10 × 33,797.40
  4. Step 4: Simplify right side
    128,567.40x = 6,517,865,767.14
  5. Step 5: Solve for x
    x = 6,517,865,767.14/128,567.40
  6. Step 6: Final answer
    x = 50,696.10

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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.