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Finding the Fourth Proportional to 163,604.10, 245,537.39 and 84,740.88

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Solution

The fourth proportional to 163,604.10, 245,537.39 and 84,740.88 is: 127,179.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,604.10 : 245,537.39 = 84,740.88 : x
  2. Step 2: Convert to fraction form
    163,604.10/245,537.39 = 84,740.88/x
  3. Step 3: Cross multiply
    163,604.10x = 245,537.39 × 84,740.88
  4. Step 4: Simplify right side
    163,604.10x = 20,807,054,501.50
  5. Step 5: Solve for x
    x = 20,807,054,501.50/163,604.10
  6. Step 6: Final answer
    x = 127,179.30

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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.