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Finding the Fourth Proportional to 372,247.32, 513,792.54 and 211,196.64

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Solution

The fourth proportional to 372,247.32, 513,792.54 and 211,196.64 is: 291,503.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,247.32 : 513,792.54 = 211,196.64 : x
  2. Step 2: Convert to fraction form
    372,247.32/513,792.54 = 211,196.64/x
  3. Step 3: Cross multiply
    372,247.32x = 513,792.54 × 211,196.64
  4. Step 4: Simplify right side
    372,247.32x = 108,511,258,105.07
  5. Step 5: Solve for x
    x = 108,511,258,105.07/372,247.32
  6. Step 6: Final answer
    x = 291,503.13

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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.