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Finding the Fourth Proportional to 248,471.84, 342,880.44 and 141,039.92

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Solution

The fourth proportional to 248,471.84, 342,880.44 and 141,039.92 is: 194,629.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,471.84 : 342,880.44 = 141,039.92 : x
  2. Step 2: Convert to fraction form
    248,471.84/342,880.44 = 141,039.92/x
  3. Step 3: Cross multiply
    248,471.84x = 342,880.44 × 141,039.92
  4. Step 4: Simplify right side
    248,471.84x = 48,359,829,827.16
  5. Step 5: Solve for x
    x = 48,359,829,827.16/248,471.84
  6. Step 6: Final answer
    x = 194,629.02

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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.