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Finding the Fourth Proportional to 363,959.40, 545,955.30 and 124,069.80

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Solution

The fourth proportional to 363,959.40, 545,955.30 and 124,069.80 is: 186,110.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,959.40 : 545,955.30 = 124,069.80 : x
  2. Step 2: Convert to fraction form
    363,959.40/545,955.30 = 124,069.80/x
  3. Step 3: Cross multiply
    363,959.40x = 545,955.30 × 124,069.80
  4. Step 4: Simplify right side
    363,959.40x = 67,736,564,879.94
  5. Step 5: Solve for x
    x = 67,736,564,879.94/363,959.40
  6. Step 6: Final answer
    x = 186,110.22

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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.