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Finding the Fourth Proportional to 319,494.48, 479,241.72 and 97,849.68

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Solution

The fourth proportional to 319,494.48, 479,241.72 and 97,849.68 is: 146,774.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,494.48 : 479,241.72 = 97,849.68 : x
  2. Step 2: Convert to fraction form
    319,494.48/479,241.72 = 97,849.68/x
  3. Step 3: Cross multiply
    319,494.48x = 479,241.72 × 97,849.68
  4. Step 4: Simplify right side
    319,494.48x = 46,893,648,944.65
  5. Step 5: Solve for x
    x = 46,893,648,944.65/319,494.48
  6. Step 6: Final answer
    x = 146,774.52

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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.