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Finding the Fourth Proportional to 316,848.36, 475,378.56 and 103,626.12

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Solution

The fourth proportional to 316,848.36, 475,378.56 and 103,626.12 is: 155,473.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,848.36 : 475,378.56 = 103,626.12 : x
  2. Step 2: Convert to fraction form
    316,848.36/475,378.56 = 103,626.12/x
  3. Step 3: Cross multiply
    316,848.36x = 475,378.56 × 103,626.12
  4. Step 4: Simplify right side
    316,848.36x = 49,261,635,703.99
  5. Step 5: Solve for x
    x = 49,261,635,703.99/316,848.36
  6. Step 6: Final answer
    x = 155,473.85

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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.