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Finding the Fourth Proportional to 235,084.70, 324,415.86 and 127,653.86

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Solution

The fourth proportional to 235,084.70, 324,415.86 and 127,653.86 is: 176,161.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,084.70 : 324,415.86 = 127,653.86 : x
  2. Step 2: Convert to fraction form
    235,084.70/324,415.86 = 127,653.86/x
  3. Step 3: Cross multiply
    235,084.70x = 324,415.86 × 127,653.86
  4. Step 4: Simplify right side
    235,084.70x = 41,412,936,774.22
  5. Step 5: Solve for x
    x = 41,412,936,774.22/235,084.70
  6. Step 6: Final answer
    x = 176,161.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.