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Finding the Fourth Proportional to 89,849.40, 134,774.10 and 58,356.60

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Solution

The fourth proportional to 89,849.40, 134,774.10 and 58,356.60 is: 87,534.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,849.40 : 134,774.10 = 58,356.60 : x
  2. Step 2: Convert to fraction form
    89,849.40/134,774.10 = 58,356.60/x
  3. Step 3: Cross multiply
    89,849.40x = 134,774.10 × 58,356.60
  4. Step 4: Simplify right side
    89,849.40x = 7,864,958,244.06
  5. Step 5: Solve for x
    x = 7,864,958,244.06/89,849.40
  6. Step 6: Final answer
    x = 87,534.90

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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.