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Finding the Fourth Proportional to 342,851.28, 473,184.36 and 191,958

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Solution

The fourth proportional to 342,851.28, 473,184.36 and 191,958 is: 264,929.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,851.28 : 473,184.36 = 191,958 : x
  2. Step 2: Convert to fraction form
    342,851.28/473,184.36 = 191,958/x
  3. Step 3: Cross multiply
    342,851.28x = 473,184.36 × 191,958
  4. Step 4: Simplify right side
    342,851.28x = 90,831,523,376.88
  5. Step 5: Solve for x
    x = 90,831,523,376.88/342,851.28
  6. Step 6: Final answer
    x = 264,929.81

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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.