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Finding the Fourth Proportional to 163,999.80, 246,057.30 and 70,534.20

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Solution

The fourth proportional to 163,999.80, 246,057.30 and 70,534.20 is: 105,826.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,999.80 : 246,057.30 = 70,534.20 : x
  2. Step 2: Convert to fraction form
    163,999.80/246,057.30 = 70,534.20/x
  3. Step 3: Cross multiply
    163,999.80x = 246,057.30 × 70,534.20
  4. Step 4: Simplify right side
    163,999.80x = 17,355,454,809.66
  5. Step 5: Solve for x
    x = 17,355,454,809.66/163,999.80
  6. Step 6: Final answer
    x = 105,826.07

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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.