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Finding the Fourth Proportional to 314,837.40, 472,212.90 and 104,453.40

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Solution

The fourth proportional to 314,837.40, 472,212.90 and 104,453.40 is: 156,665.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,837.40 : 472,212.90 = 104,453.40 : x
  2. Step 2: Convert to fraction form
    314,837.40/472,212.90 = 104,453.40/x
  3. Step 3: Cross multiply
    314,837.40x = 472,212.90 × 104,453.40
  4. Step 4: Simplify right side
    314,837.40x = 49,324,242,928.86
  5. Step 5: Solve for x
    x = 49,324,242,928.86/314,837.40
  6. Step 6: Final answer
    x = 156,665.77

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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.