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Finding the Fourth Proportional to 265,056.75, 397,307.46 and 129,934.17

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Solution

The fourth proportional to 265,056.75, 397,307.46 and 129,934.17 is: 194,765.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,056.75 : 397,307.46 = 129,934.17 : x
  2. Step 2: Convert to fraction form
    265,056.75/397,307.46 = 129,934.17/x
  3. Step 3: Cross multiply
    265,056.75x = 397,307.46 × 129,934.17
  4. Step 4: Simplify right side
    265,056.75x = 51,623,815,049.91
  5. Step 5: Solve for x
    x = 51,623,815,049.91/265,056.75
  6. Step 6: Final answer
    x = 194,765.14

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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.