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Finding the Fourth Proportional to 115,796.40, 173,702.70 and 45,666.60

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Solution

The fourth proportional to 115,796.40, 173,702.70 and 45,666.60 is: 68,503.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,796.40 : 173,702.70 = 45,666.60 : x
  2. Step 2: Convert to fraction form
    115,796.40/173,702.70 = 45,666.60/x
  3. Step 3: Cross multiply
    115,796.40x = 173,702.70 × 45,666.60
  4. Step 4: Simplify right side
    115,796.40x = 7,932,411,719.82
  5. Step 5: Solve for x
    x = 7,932,411,719.82/115,796.40
  6. Step 6: Final answer
    x = 68,503.09

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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.