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Finding the Fourth Proportional to 484,041.96, 726,097.62 and 129,054.12

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Solution

The fourth proportional to 484,041.96, 726,097.62 and 129,054.12 is: 193,590.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,041.96 : 726,097.62 = 129,054.12 : x
  2. Step 2: Convert to fraction form
    484,041.96/726,097.62 = 129,054.12/x
  3. Step 3: Cross multiply
    484,041.96x = 726,097.62 × 129,054.12
  4. Step 4: Simplify right side
    484,041.96x = 93,705,889,383.19
  5. Step 5: Solve for x
    x = 93,705,889,383.19/484,041.96
  6. Step 6: Final answer
    x = 193,590.43

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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.