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Finding the Fourth Proportional to 140,399.55, 210,599.48 and 35,218.52

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Solution

The fourth proportional to 140,399.55, 210,599.48 and 35,218.52 is: 52,827.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,399.55 : 210,599.48 = 35,218.52 : x
  2. Step 2: Convert to fraction form
    140,399.55/210,599.48 = 35,218.52/x
  3. Step 3: Cross multiply
    140,399.55x = 210,599.48 × 35,218.52
  4. Step 4: Simplify right side
    140,399.55x = 7,417,001,559.03
  5. Step 5: Solve for x
    x = 7,417,001,559.03/140,399.55
  6. Step 6: Final answer
    x = 52,827.82

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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.