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Finding the Fourth Proportional to 411,666.60, 617,545.32 and 131,119.32

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Solution

The fourth proportional to 411,666.60, 617,545.32 and 131,119.32 is: 196,693.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,666.60 : 617,545.32 = 131,119.32 : x
  2. Step 2: Convert to fraction form
    411,666.60/617,545.32 = 131,119.32/x
  3. Step 3: Cross multiply
    411,666.60x = 617,545.32 × 131,119.32
  4. Step 4: Simplify right side
    411,666.60x = 80,972,122,427.58
  5. Step 5: Solve for x
    x = 80,972,122,427.58/411,666.60
  6. Step 6: Final answer
    x = 196,693.45

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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.