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Finding the Fourth Proportional to 496,708.18, 745,089.81 and 141,694.90

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Solution

The fourth proportional to 496,708.18, 745,089.81 and 141,694.90 is: 212,550.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,708.18 : 745,089.81 = 141,694.90 : x
  2. Step 2: Convert to fraction form
    496,708.18/745,089.81 = 141,694.90/x
  3. Step 3: Cross multiply
    496,708.18x = 745,089.81 × 141,694.90
  4. Step 4: Simplify right side
    496,708.18x = 105,575,426,118.97
  5. Step 5: Solve for x
    x = 105,575,426,118.97/496,708.18
  6. Step 6: Final answer
    x = 212,550.21

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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.