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Finding the Fourth Proportional to 208,597.76, 312,895.68 and 50,825.60

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Solution

The fourth proportional to 208,597.76, 312,895.68 and 50,825.60 is: 76,238.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,597.76 : 312,895.68 = 50,825.60 : x
  2. Step 2: Convert to fraction form
    208,597.76/312,895.68 = 50,825.60/x
  3. Step 3: Cross multiply
    208,597.76x = 312,895.68 × 50,825.60
  4. Step 4: Simplify right side
    208,597.76x = 15,903,110,673.41
  5. Step 5: Solve for x
    x = 15,903,110,673.41/208,597.76
  6. Step 6: Final answer
    x = 76,238.17

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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.