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Finding the Fourth Proportional to 89,881.51, 134,803.12 and 26,684.50

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Solution

The fourth proportional to 89,881.51, 134,803.12 and 26,684.50 is: 40,021.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,881.51 : 134,803.12 = 26,684.50 : x
  2. Step 2: Convert to fraction form
    89,881.51/134,803.12 = 26,684.50/x
  3. Step 3: Cross multiply
    89,881.51x = 134,803.12 × 26,684.50
  4. Step 4: Simplify right side
    89,881.51x = 3,597,153,855.64
  5. Step 5: Solve for x
    x = 3,597,153,855.64/89,881.51
  6. Step 6: Final answer
    x = 40,021.07

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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.