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Finding the Fourth Proportional to 481,042.40, 721,666.67 and 177,437.59

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Solution

The fourth proportional to 481,042.40, 721,666.67 and 177,437.59 is: 266,194.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,042.40 : 721,666.67 = 177,437.59 : x
  2. Step 2: Convert to fraction form
    481,042.40/721,666.67 = 177,437.59/x
  3. Step 3: Cross multiply
    481,042.40x = 721,666.67 × 177,437.59
  4. Step 4: Simplify right side
    481,042.40x = 128,050,792,016.77
  5. Step 5: Solve for x
    x = 128,050,792,016.77/481,042.40
  6. Step 6: Final answer
    x = 266,194.40

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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.