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Finding the Fourth Proportional to 235,503.66, 324,880.76 and 139,942.70

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Solution

The fourth proportional to 235,503.66, 324,880.76 and 139,942.70 is: 193,053.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,503.66 : 324,880.76 = 139,942.70 : x
  2. Step 2: Convert to fraction form
    235,503.66/324,880.76 = 139,942.70/x
  3. Step 3: Cross multiply
    235,503.66x = 324,880.76 × 139,942.70
  4. Step 4: Simplify right side
    235,503.66x = 45,464,690,732.45
  5. Step 5: Solve for x
    x = 45,464,690,732.45/235,503.66
  6. Step 6: Final answer
    x = 193,053.01

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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.