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Finding the Fourth Proportional to 98,879.34, 148,274.66 and 58,917.14

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Solution

The fourth proportional to 98,879.34, 148,274.66 and 58,917.14 is: 88,349.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,879.34 : 148,274.66 = 58,917.14 : x
  2. Step 2: Convert to fraction form
    98,879.34/148,274.66 = 58,917.14/x
  3. Step 3: Cross multiply
    98,879.34x = 148,274.66 × 58,917.14
  4. Step 4: Simplify right side
    98,879.34x = 8,735,918,901.67
  5. Step 5: Solve for x
    x = 8,735,918,901.67/98,879.34
  6. Step 6: Final answer
    x = 88,349.28

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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.