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Finding the Fourth Proportional to 88,446.32, 132,733.60 and 66,319.28

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Solution

The fourth proportional to 88,446.32, 132,733.60 and 66,319.28 is: 99,527.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,446.32 : 132,733.60 = 66,319.28 : x
  2. Step 2: Convert to fraction form
    88,446.32/132,733.60 = 66,319.28/x
  3. Step 3: Cross multiply
    88,446.32x = 132,733.60 × 66,319.28
  4. Step 4: Simplify right side
    88,446.32x = 8,802,796,783.81
  5. Step 5: Solve for x
    x = 8,802,796,783.81/88,446.32
  6. Step 6: Final answer
    x = 99,527.00

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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.