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Finding the Fourth Proportional to 342,387.36, 472,494.24 and 191,484

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Solution

The fourth proportional to 342,387.36, 472,494.24 and 191,484 is: 264,247.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,387.36 : 472,494.24 = 191,484 : x
  2. Step 2: Convert to fraction form
    342,387.36/472,494.24 = 191,484/x
  3. Step 3: Cross multiply
    342,387.36x = 472,494.24 × 191,484
  4. Step 4: Simplify right side
    342,387.36x = 90,475,087,052.16
  5. Step 5: Solve for x
    x = 90,475,087,052.16/342,387.36
  6. Step 6: Final answer
    x = 264,247.74

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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.