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Finding the Fourth Proportional to 88,732.85, 132,964.60 and 65,056.16

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Solution

The fourth proportional to 88,732.85, 132,964.60 and 65,056.16 is: 97,485.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,732.85 : 132,964.60 = 65,056.16 : x
  2. Step 2: Convert to fraction form
    88,732.85/132,964.60 = 65,056.16/x
  3. Step 3: Cross multiply
    88,732.85x = 132,964.60 × 65,056.16
  4. Step 4: Simplify right side
    88,732.85x = 8,650,166,291.94
  5. Step 5: Solve for x
    x = 8,650,166,291.94/88,732.85
  6. Step 6: Final answer
    x = 97,485.50

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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.