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Finding the Fourth Proportional to 441,657.16, 662,511.66 and 126,089.80

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Solution

The fourth proportional to 441,657.16, 662,511.66 and 126,089.80 is: 189,142.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,657.16 : 662,511.66 = 126,089.80 : x
  2. Step 2: Convert to fraction form
    441,657.16/662,511.66 = 126,089.80/x
  3. Step 3: Cross multiply
    441,657.16x = 662,511.66 × 126,089.80
  4. Step 4: Simplify right side
    441,657.16x = 83,535,962,707.07
  5. Step 5: Solve for x
    x = 83,535,962,707.07/441,657.16
  6. Step 6: Final answer
    x = 189,142.10

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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.