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Finding the Fourth Proportional to 79,499.54, 118,989.74 and 58,434.04

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Solution

The fourth proportional to 79,499.54, 118,989.74 and 58,434.04 is: 87,460.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,499.54 : 118,989.74 = 58,434.04 : x
  2. Step 2: Convert to fraction form
    79,499.54/118,989.74 = 58,434.04/x
  3. Step 3: Cross multiply
    79,499.54x = 118,989.74 × 58,434.04
  4. Step 4: Simplify right side
    79,499.54x = 6,953,051,521.57
  5. Step 5: Solve for x
    x = 6,953,051,521.57/79,499.54
  6. Step 6: Final answer
    x = 87,460.27

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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.