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Finding the Fourth Proportional to 88,586.84, 132,748.98 and 72,903.31

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Solution

The fourth proportional to 88,586.84, 132,748.98 and 72,903.31 is: 109,246.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,586.84 : 132,748.98 = 72,903.31 : x
  2. Step 2: Convert to fraction form
    88,586.84/132,748.98 = 72,903.31/x
  3. Step 3: Cross multiply
    88,586.84x = 132,748.98 × 72,903.31
  4. Step 4: Simplify right side
    88,586.84x = 9,677,840,207.06
  5. Step 5: Solve for x
    x = 9,677,840,207.06/88,586.84
  6. Step 6: Final answer
    x = 109,246.94

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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.