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Finding the Fourth Proportional to 89,485.92, 134,248.02 and 56,249.01

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Solution

The fourth proportional to 89,485.92, 134,248.02 and 56,249.01 is: 84,385.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,485.92 : 134,248.02 = 56,249.01 : x
  2. Step 2: Convert to fraction form
    89,485.92/134,248.02 = 56,249.01/x
  3. Step 3: Cross multiply
    89,485.92x = 134,248.02 × 56,249.01
  4. Step 4: Simplify right side
    89,485.92x = 7,551,318,219.46
  5. Step 5: Solve for x
    x = 7,551,318,219.46/89,485.92
  6. Step 6: Final answer
    x = 84,385.55

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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.