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Finding the Fourth Proportional to 499,390.92, 749,157.46 and 162,323.19

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Solution

The fourth proportional to 499,390.92, 749,157.46 and 162,323.19 is: 243,507.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,390.92 : 749,157.46 = 162,323.19 : x
  2. Step 2: Convert to fraction form
    499,390.92/749,157.46 = 162,323.19/x
  3. Step 3: Cross multiply
    499,390.92x = 749,157.46 × 162,323.19
  4. Step 4: Simplify right side
    499,390.92x = 121,605,628,313.69
  5. Step 5: Solve for x
    x = 121,605,628,313.69/499,390.92
  6. Step 6: Final answer
    x = 243,507.89

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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.