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Finding the Fourth Proportional to 556,935.75, 835,420.03 and 136,211.63

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Solution

The fourth proportional to 556,935.75, 835,420.03 and 136,211.63 is: 204,321.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,935.75 : 835,420.03 = 136,211.63 : x
  2. Step 2: Convert to fraction form
    556,935.75/835,420.03 = 136,211.63/x
  3. Step 3: Cross multiply
    556,935.75x = 835,420.03 × 136,211.63
  4. Step 4: Simplify right side
    556,935.75x = 113,793,919,503.32
  5. Step 5: Solve for x
    x = 113,793,919,503.32/556,935.75
  6. Step 6: Final answer
    x = 204,321.45

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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.