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Finding the Fourth Proportional to 500,579.44, 750,861.20 and 121,503.32

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Solution

The fourth proportional to 500,579.44, 750,861.20 and 121,503.32 is: 182,253.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,579.44 : 750,861.20 = 121,503.32 : x
  2. Step 2: Convert to fraction form
    500,579.44/750,861.20 = 121,503.32/x
  3. Step 3: Cross multiply
    500,579.44x = 750,861.20 × 121,503.32
  4. Step 4: Simplify right side
    500,579.44x = 91,232,128,659.18
  5. Step 5: Solve for x
    x = 91,232,128,659.18/500,579.44
  6. Step 6: Final answer
    x = 182,253.05

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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.