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Finding the Fourth Proportional to 328,962.86, 493,461.88 and 104,340.34

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Solution

The fourth proportional to 328,962.86, 493,461.88 and 104,340.34 is: 156,516.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,962.86 : 493,461.88 = 104,340.34 : x
  2. Step 2: Convert to fraction form
    328,962.86/493,461.88 = 104,340.34/x
  3. Step 3: Cross multiply
    328,962.86x = 493,461.88 × 104,340.34
  4. Step 4: Simplify right side
    328,962.86x = 51,487,980,336.24
  5. Step 5: Solve for x
    x = 51,487,980,336.24/328,962.86
  6. Step 6: Final answer
    x = 156,516.09

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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.