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Finding the Fourth Proportional to 89,488.80, 134,524.80 and 63,374.40

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Solution

The fourth proportional to 89,488.80, 134,524.80 and 63,374.40 is: 95,268.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,488.80 : 134,524.80 = 63,374.40 : x
  2. Step 2: Convert to fraction form
    89,488.80/134,524.80 = 63,374.40/x
  3. Step 3: Cross multiply
    89,488.80x = 134,524.80 × 63,374.40
  4. Step 4: Simplify right side
    89,488.80x = 8,525,428,485.12
  5. Step 5: Solve for x
    x = 8,525,428,485.12/89,488.80
  6. Step 6: Final answer
    x = 95,268.11

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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.