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Finding the Fourth Proportional to 411,644.64, 617,220.90 and 158,715.34

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Solution

The fourth proportional to 411,644.64, 617,220.90 and 158,715.34 is: 237,978.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,644.64 : 617,220.90 = 158,715.34 : x
  2. Step 2: Convert to fraction form
    411,644.64/617,220.90 = 158,715.34/x
  3. Step 3: Cross multiply
    411,644.64x = 617,220.90 × 158,715.34
  4. Step 4: Simplify right side
    411,644.64x = 97,962,424,998.61
  5. Step 5: Solve for x
    x = 97,962,424,998.61/411,644.64
  6. Step 6: Final answer
    x = 237,978.14

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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.