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Finding the Fourth Proportional to 140,909.94, 211,303.47 and 53,296.50

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Solution

The fourth proportional to 140,909.94, 211,303.47 and 53,296.50 is: 79,921.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,909.94 : 211,303.47 = 53,296.50 : x
  2. Step 2: Convert to fraction form
    140,909.94/211,303.47 = 53,296.50/x
  3. Step 3: Cross multiply
    140,909.94x = 211,303.47 × 53,296.50
  4. Step 4: Simplify right side
    140,909.94x = 11,261,735,388.86
  5. Step 5: Solve for x
    x = 11,261,735,388.86/140,909.94
  6. Step 6: Final answer
    x = 79,921.51

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.