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Finding the Fourth Proportional to 88,485.84, 132,687.99 and 28,503.45

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Solution

The fourth proportional to 88,485.84, 132,687.99 and 28,503.45 is: 42,742.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,485.84 : 132,687.99 = 28,503.45 : x
  2. Step 2: Convert to fraction form
    88,485.84/132,687.99 = 28,503.45/x
  3. Step 3: Cross multiply
    88,485.84x = 132,687.99 × 28,503.45
  4. Step 4: Simplify right side
    88,485.84x = 3,782,065,488.57
  5. Step 5: Solve for x
    x = 3,782,065,488.57/88,485.84
  6. Step 6: Final answer
    x = 42,742.04

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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.