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Finding the Fourth Proportional to 208,374.50, 312,561.48 and 50,602.70

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Solution

The fourth proportional to 208,374.50, 312,561.48 and 50,602.70 is: 75,903.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,374.50 : 312,561.48 = 50,602.70 : x
  2. Step 2: Convert to fraction form
    208,374.50/312,561.48 = 50,602.70/x
  3. Step 3: Cross multiply
    208,374.50x = 312,561.48 × 50,602.70
  4. Step 4: Simplify right side
    208,374.50x = 15,816,454,804.00
  5. Step 5: Solve for x
    x = 15,816,454,804.00/208,374.50
  6. Step 6: Final answer
    x = 75,903.98

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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.