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Finding the Fourth Proportional to 238,591.75, 357,828.59 and 142,555.18

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Solution

The fourth proportional to 238,591.75, 357,828.59 and 142,555.18 is: 213,797.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,591.75 : 357,828.59 = 142,555.18 : x
  2. Step 2: Convert to fraction form
    238,591.75/357,828.59 = 142,555.18/x
  3. Step 3: Cross multiply
    238,591.75x = 357,828.59 × 142,555.18
  4. Step 4: Simplify right side
    238,591.75x = 51,010,316,554.68
  5. Step 5: Solve for x
    x = 51,010,316,554.68/238,591.75
  6. Step 6: Final answer
    x = 213,797.49

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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.