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Finding the Fourth Proportional to 319,968.98, 480,022.67 and 95,347.50

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Solution

The fourth proportional to 319,968.98, 480,022.67 and 95,347.50 is: 143,041.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,968.98 : 480,022.67 = 95,347.50 : x
  2. Step 2: Convert to fraction form
    319,968.98/480,022.67 = 95,347.50/x
  3. Step 3: Cross multiply
    319,968.98x = 480,022.67 × 95,347.50
  4. Step 4: Simplify right side
    319,968.98x = 45,768,961,051.09
  5. Step 5: Solve for x
    x = 45,768,961,051.09/319,968.98
  6. Step 6: Final answer
    x = 143,041.87

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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.