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Finding the Fourth Proportional to 89,903.13, 134,812.98 and 52,473.98

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Solution

The fourth proportional to 89,903.13, 134,812.98 and 52,473.98 is: 78,686.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,903.13 : 134,812.98 = 52,473.98 : x
  2. Step 2: Convert to fraction form
    89,903.13/134,812.98 = 52,473.98/x
  3. Step 3: Cross multiply
    89,903.13x = 134,812.98 × 52,473.98
  4. Step 4: Simplify right side
    89,903.13x = 7,074,172,942.20
  5. Step 5: Solve for x
    x = 7,074,172,942.20/89,903.13
  6. Step 6: Final answer
    x = 78,686.61

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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.