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Finding the Fourth Proportional to 89,398.45, 134,214.87 and 59,948.07

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Solution

The fourth proportional to 89,398.45, 134,214.87 and 59,948.07 is: 90,000.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,398.45 : 134,214.87 = 59,948.07 : x
  2. Step 2: Convert to fraction form
    89,398.45/134,214.87 = 59,948.07/x
  3. Step 3: Cross multiply
    89,398.45x = 134,214.87 × 59,948.07
  4. Step 4: Simplify right side
    89,398.45x = 8,045,922,421.80
  5. Step 5: Solve for x
    x = 8,045,922,421.80/89,398.45
  6. Step 6: Final answer
    x = 90,000.69

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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.