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Finding the Fourth Proportional to 136,762.18, 204,468.90 and 115,934.64

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Solution

The fourth proportional to 136,762.18, 204,468.90 and 115,934.64 is: 173,330.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,762.18 : 204,468.90 = 115,934.64 : x
  2. Step 2: Convert to fraction form
    136,762.18/204,468.90 = 115,934.64/x
  3. Step 3: Cross multiply
    136,762.18x = 204,468.90 × 115,934.64
  4. Step 4: Simplify right side
    136,762.18x = 23,705,028,312.70
  5. Step 5: Solve for x
    x = 23,705,028,312.70/136,762.18
  6. Step 6: Final answer
    x = 173,330.29

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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.