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Finding the Fourth Proportional to 347,913.30, 521,808.30 and 158,329.56

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Solution

The fourth proportional to 347,913.30, 521,808.30 and 158,329.56 is: 237,466.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,913.30 : 521,808.30 = 158,329.56 : x
  2. Step 2: Convert to fraction form
    347,913.30/521,808.30 = 158,329.56/x
  3. Step 3: Cross multiply
    347,913.30x = 521,808.30 × 158,329.56
  4. Step 4: Simplify right side
    347,913.30x = 82,617,678,543.35
  5. Step 5: Solve for x
    x = 82,617,678,543.35/347,913.30
  6. Step 6: Final answer
    x = 237,466.28

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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.