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Finding the Fourth Proportional to 500,667.48, 751,047.41 and 163,709.87

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Solution

The fourth proportional to 500,667.48, 751,047.41 and 163,709.87 is: 245,579.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,667.48 : 751,047.41 = 163,709.87 : x
  2. Step 2: Convert to fraction form
    500,667.48/751,047.41 = 163,709.87/x
  3. Step 3: Cross multiply
    500,667.48x = 751,047.41 × 163,709.87
  4. Step 4: Simplify right side
    500,667.48x = 122,953,869,281.15
  5. Step 5: Solve for x
    x = 122,953,869,281.15/500,667.48
  6. Step 6: Final answer
    x = 245,579.90

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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.