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Finding the Fourth Proportional to 238,505.49, 357,774.80 and 80,680.59

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Solution

The fourth proportional to 238,505.49, 357,774.80 and 80,680.59 is: 121,026.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,505.49 : 357,774.80 = 80,680.59 : x
  2. Step 2: Convert to fraction form
    238,505.49/357,774.80 = 80,680.59/x
  3. Step 3: Cross multiply
    238,505.49x = 357,774.80 × 80,680.59
  4. Step 4: Simplify right side
    238,505.49x = 28,865,481,547.73
  5. Step 5: Solve for x
    x = 28,865,481,547.73/238,505.49
  6. Step 6: Final answer
    x = 121,026.49

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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.