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Finding the Fourth Proportional to 140,807.77, 211,208.01 and 47,313.52

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Solution

The fourth proportional to 140,807.77, 211,208.01 and 47,313.52 is: 70,969.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,807.77 : 211,208.01 = 47,313.52 : x
  2. Step 2: Convert to fraction form
    140,807.77/211,208.01 = 47,313.52/x
  3. Step 3: Cross multiply
    140,807.77x = 211,208.01 × 47,313.52
  4. Step 4: Simplify right side
    140,807.77x = 9,992,994,405.30
  5. Step 5: Solve for x
    x = 9,992,994,405.30/140,807.77
  6. Step 6: Final answer
    x = 70,969.06

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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.