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Finding the Fourth Proportional to 89,888.13, 134,790.48 and 52,458.98

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Solution

The fourth proportional to 89,888.13, 134,790.48 and 52,458.98 is: 78,664.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,888.13 : 134,790.48 = 52,458.98 : x
  2. Step 2: Convert to fraction form
    89,888.13/134,790.48 = 52,458.98/x
  3. Step 3: Cross multiply
    89,888.13x = 134,790.48 × 52,458.98
  4. Step 4: Simplify right side
    89,888.13x = 7,070,970,420.56
  5. Step 5: Solve for x
    x = 7,070,970,420.56/89,888.13
  6. Step 6: Final answer
    x = 78,664.12

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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.