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Finding the Fourth Proportional to 208,022.60, 312,033.90 and 124,041.80

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Solution

The fourth proportional to 208,022.60, 312,033.90 and 124,041.80 is: 186,062.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,022.60 : 312,033.90 = 124,041.80 : x
  2. Step 2: Convert to fraction form
    208,022.60/312,033.90 = 124,041.80/x
  3. Step 3: Cross multiply
    208,022.60x = 312,033.90 × 124,041.80
  4. Step 4: Simplify right side
    208,022.60x = 38,705,246,617.02
  5. Step 5: Solve for x
    x = 38,705,246,617.02/208,022.60
  6. Step 6: Final answer
    x = 186,062.70

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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.