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Finding the Fourth Proportional to 98,997.39, 148,484.03 and 28,876.77

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Solution

The fourth proportional to 98,997.39, 148,484.03 and 28,876.77 is: 43,311.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,997.39 : 148,484.03 = 28,876.77 : x
  2. Step 2: Convert to fraction form
    98,997.39/148,484.03 = 28,876.77/x
  3. Step 3: Cross multiply
    98,997.39x = 148,484.03 × 28,876.77
  4. Step 4: Simplify right side
    98,997.39x = 4,287,739,038.60
  5. Step 5: Solve for x
    x = 4,287,739,038.60/98,997.39
  6. Step 6: Final answer
    x = 43,311.64

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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.