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Finding the Fourth Proportional to 95,459.58, 143,206.99 and 31,421.32

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Solution

The fourth proportional to 95,459.58, 143,206.99 and 31,421.32 is: 47,137.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,459.58 : 143,206.99 = 31,421.32 : x
  2. Step 2: Convert to fraction form
    95,459.58/143,206.99 = 31,421.32/x
  3. Step 3: Cross multiply
    95,459.58x = 143,206.99 × 31,421.32
  4. Step 4: Simplify right side
    95,459.58x = 4,499,752,222.46
  5. Step 5: Solve for x
    x = 4,499,752,222.46/95,459.58
  6. Step 6: Final answer
    x = 47,137.78

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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.