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Finding the Fourth Proportional to 496,957.85, 745,443.26 and 141,983.45

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Solution

The fourth proportional to 496,957.85, 745,443.26 and 141,983.45 is: 212,977.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,957.85 : 745,443.26 = 141,983.45 : x
  2. Step 2: Convert to fraction form
    496,957.85/745,443.26 = 141,983.45/x
  3. Step 3: Cross multiply
    496,957.85x = 745,443.26 × 141,983.45
  4. Step 4: Simplify right side
    496,957.85x = 105,840,605,124.13
  5. Step 5: Solve for x
    x = 105,840,605,124.13/496,957.85
  6. Step 6: Final answer
    x = 212,977.03

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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.