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Finding the Fourth Proportional to 117,962.60, 176,598.30 and 104,138.60

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Solution

The fourth proportional to 117,962.60, 176,598.30 and 104,138.60 is: 155,902.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,962.60 : 176,598.30 = 104,138.60 : x
  2. Step 2: Convert to fraction form
    117,962.60/176,598.30 = 104,138.60/x
  3. Step 3: Cross multiply
    117,962.60x = 176,598.30 × 104,138.60
  4. Step 4: Simplify right side
    117,962.60x = 18,390,699,724.38
  5. Step 5: Solve for x
    x = 18,390,699,724.38/117,962.60
  6. Step 6: Final answer
    x = 155,902.80

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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.