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Finding the Fourth Proportional to 89,878.48, 134,844.65 and 26,700.71

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Solution

The fourth proportional to 89,878.48, 134,844.65 and 26,700.71 is: 40,059.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,878.48 : 134,844.65 = 26,700.71 : x
  2. Step 2: Convert to fraction form
    89,878.48/134,844.65 = 26,700.71/x
  3. Step 3: Cross multiply
    89,878.48x = 134,844.65 × 26,700.71
  4. Step 4: Simplify right side
    89,878.48x = 3,600,447,187.10
  5. Step 5: Solve for x
    x = 3,600,447,187.10/89,878.48
  6. Step 6: Final answer
    x = 40,059.06

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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.