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Finding the Fourth Proportional to 496,939.80, 745,409.70 and 122,962.80

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Solution

The fourth proportional to 496,939.80, 745,409.70 and 122,962.80 is: 184,444.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,939.80 : 745,409.70 = 122,962.80 : x
  2. Step 2: Convert to fraction form
    496,939.80/745,409.70 = 122,962.80/x
  3. Step 3: Cross multiply
    496,939.80x = 745,409.70 × 122,962.80
  4. Step 4: Simplify right side
    496,939.80x = 91,657,663,859.16
  5. Step 5: Solve for x
    x = 91,657,663,859.16/496,939.80
  6. Step 6: Final answer
    x = 184,444.20

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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.