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Finding the Fourth Proportional to 328,848.48, 493,272.96 and 79,530.72

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Solution

The fourth proportional to 328,848.48, 493,272.96 and 79,530.72 is: 119,296.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,848.48 : 493,272.96 = 79,530.72 : x
  2. Step 2: Convert to fraction form
    328,848.48/493,272.96 = 79,530.72/x
  3. Step 3: Cross multiply
    328,848.48x = 493,272.96 × 79,530.72
  4. Step 4: Simplify right side
    328,848.48x = 39,230,353,665.33
  5. Step 5: Solve for x
    x = 39,230,353,665.33/328,848.48
  6. Step 6: Final answer
    x = 119,296.14

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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.