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Finding the Fourth Proportional to 445,463.88, 668,160.93 and 125,602.83

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Solution

The fourth proportional to 445,463.88, 668,160.93 and 125,602.83 is: 188,394.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,463.88 : 668,160.93 = 125,602.83 : x
  2. Step 2: Convert to fraction form
    445,463.88/668,160.93 = 125,602.83/x
  3. Step 3: Cross multiply
    445,463.88x = 668,160.93 × 125,602.83
  4. Step 4: Simplify right side
    445,463.88x = 83,922,903,703.43
  5. Step 5: Solve for x
    x = 83,922,903,703.43/445,463.88
  6. Step 6: Final answer
    x = 188,394.41

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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.