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Finding the Fourth Proportional to 545,761.24, 818,623.36 and 166,666.64

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Solution

The fourth proportional to 545,761.24, 818,623.36 and 166,666.64 is: 249,994.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,761.24 : 818,623.36 = 166,666.64 : x
  2. Step 2: Convert to fraction form
    545,761.24/818,623.36 = 166,666.64/x
  3. Step 3: Cross multiply
    545,761.24x = 818,623.36 × 166,666.64
  4. Step 4: Simplify right side
    545,761.24x = 136,437,204,836.71
  5. Step 5: Solve for x
    x = 136,437,204,836.71/545,761.24
  6. Step 6: Final answer
    x = 249,994.31

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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.