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Finding the Fourth Proportional to 163,409.77, 245,114.84 and 51,090.57

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Solution

The fourth proportional to 163,409.77, 245,114.84 and 51,090.57 is: 76,635.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,409.77 : 245,114.84 = 51,090.57 : x
  2. Step 2: Convert to fraction form
    163,409.77/245,114.84 = 51,090.57/x
  3. Step 3: Cross multiply
    163,409.77x = 245,114.84 × 51,090.57
  4. Step 4: Simplify right side
    163,409.77x = 12,523,056,891.06
  5. Step 5: Solve for x
    x = 12,523,056,891.06/163,409.77
  6. Step 6: Final answer
    x = 76,635.92

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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.