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Finding the Fourth Proportional to 341,381.80, 512,072.70 and 104,724.10

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Solution

The fourth proportional to 341,381.80, 512,072.70 and 104,724.10 is: 157,086.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,381.80 : 512,072.70 = 104,724.10 : x
  2. Step 2: Convert to fraction form
    341,381.80/512,072.70 = 104,724.10/x
  3. Step 3: Cross multiply
    341,381.80x = 512,072.70 × 104,724.10
  4. Step 4: Simplify right side
    341,381.80x = 53,626,352,642.07
  5. Step 5: Solve for x
    x = 53,626,352,642.07/341,381.80
  6. Step 6: Final answer
    x = 157,086.15

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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.