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Finding the Fourth Proportional to 341,803.90, 512,795.45 and 131,448.70

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Solution

The fourth proportional to 341,803.90, 512,795.45 and 131,448.70 is: 197,207.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,803.90 : 512,795.45 = 131,448.70 : x
  2. Step 2: Convert to fraction form
    341,803.90/512,795.45 = 131,448.70/x
  3. Step 3: Cross multiply
    341,803.90x = 512,795.45 × 131,448.70
  4. Step 4: Simplify right side
    341,803.90x = 67,406,295,268.42
  5. Step 5: Solve for x
    x = 67,406,295,268.42/341,803.90
  6. Step 6: Final answer
    x = 197,207.51

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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.