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Finding the Fourth Proportional to 244,335.60, 366,503.40 and 86,543.55

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Solution

The fourth proportional to 244,335.60, 366,503.40 and 86,543.55 is: 129,815.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,335.60 : 366,503.40 = 86,543.55 : x
  2. Step 2: Convert to fraction form
    244,335.60/366,503.40 = 86,543.55/x
  3. Step 3: Cross multiply
    244,335.60x = 366,503.40 × 86,543.55
  4. Step 4: Simplify right side
    244,335.60x = 31,718,505,323.07
  5. Step 5: Solve for x
    x = 31,718,505,323.07/244,335.60
  6. Step 6: Final answer
    x = 129,815.33

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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.