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Finding the Fourth Proportional to 342,516.53, 472,673.72 and 189,565.28

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Solution

The fourth proportional to 342,516.53, 472,673.72 and 189,565.28 is: 261,600.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,516.53 : 472,673.72 = 189,565.28 : x
  2. Step 2: Convert to fraction form
    342,516.53/472,673.72 = 189,565.28/x
  3. Step 3: Cross multiply
    342,516.53x = 472,673.72 × 189,565.28
  4. Step 4: Simplify right side
    342,516.53x = 89,602,522,769.25
  5. Step 5: Solve for x
    x = 89,602,522,769.25/342,516.53
  6. Step 6: Final answer
    x = 261,600.58

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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.