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Finding the Fourth Proportional to 163,861.74, 245,805.96 and 45,533.10

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Solution

The fourth proportional to 163,861.74, 245,805.96 and 45,533.10 is: 68,303.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,861.74 : 245,805.96 = 45,533.10 : x
  2. Step 2: Convert to fraction form
    163,861.74/245,805.96 = 45,533.10/x
  3. Step 3: Cross multiply
    163,861.74x = 245,805.96 × 45,533.10
  4. Step 4: Simplify right side
    163,861.74x = 11,192,307,357.28
  5. Step 5: Solve for x
    x = 11,192,307,357.28/163,861.74
  6. Step 6: Final answer
    x = 68,303.36

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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.