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Finding the Fourth Proportional to 103,232.40, 154,848.60 and 65,907.60

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Solution

The fourth proportional to 103,232.40, 154,848.60 and 65,907.60 is: 98,861.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,232.40 : 154,848.60 = 65,907.60 : x
  2. Step 2: Convert to fraction form
    103,232.40/154,848.60 = 65,907.60/x
  3. Step 3: Cross multiply
    103,232.40x = 154,848.60 × 65,907.60
  4. Step 4: Simplify right side
    103,232.40x = 10,205,699,589.36
  5. Step 5: Solve for x
    x = 10,205,699,589.36/103,232.40
  6. Step 6: Final answer
    x = 98,861.40

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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.