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Finding the Fourth Proportional to 129,389, 194,083.59 and 35,894.84

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Solution

The fourth proportional to 129,389, 194,083.59 and 35,894.84 is: 53,842.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,389 : 194,083.59 = 35,894.84 : x
  2. Step 2: Convert to fraction form
    129,389/194,083.59 = 35,894.84/x
  3. Step 3: Cross multiply
    129,389x = 194,083.59 × 35,894.84
  4. Step 4: Simplify right side
    129,389x = 6,966,599,409.68
  5. Step 5: Solve for x
    x = 6,966,599,409.68/129,389
  6. Step 6: Final answer
    x = 53,842.28

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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.