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Finding the Fourth Proportional to 163,661.80, 245,649.30 and 84,832.60

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Solution

The fourth proportional to 163,661.80, 245,649.30 and 84,832.60 is: 127,330.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,661.80 : 245,649.30 = 84,832.60 : x
  2. Step 2: Convert to fraction form
    163,661.80/245,649.30 = 84,832.60/x
  3. Step 3: Cross multiply
    163,661.80x = 245,649.30 × 84,832.60
  4. Step 4: Simplify right side
    163,661.80x = 20,839,068,807.18
  5. Step 5: Solve for x
    x = 20,839,068,807.18/163,661.80
  6. Step 6: Final answer
    x = 127,330.07

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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.