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Finding the Fourth Proportional to 220,179.60, 303,866.64 and 124,703.28

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Solution

The fourth proportional to 220,179.60, 303,866.64 and 124,703.28 is: 172,101.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,179.60 : 303,866.64 = 124,703.28 : x
  2. Step 2: Convert to fraction form
    220,179.60/303,866.64 = 124,703.28/x
  3. Step 3: Cross multiply
    220,179.60x = 303,866.64 × 124,703.28
  4. Step 4: Simplify right side
    220,179.60x = 37,893,166,690.58
  5. Step 5: Solve for x
    x = 37,893,166,690.58/220,179.60
  6. Step 6: Final answer
    x = 172,101.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.