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Finding the Fourth Proportional to 98,994.62, 148,499.22 and 28,875.80

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Solution

The fourth proportional to 98,994.62, 148,499.22 and 28,875.80 is: 43,315.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,994.62 : 148,499.22 = 28,875.80 : x
  2. Step 2: Convert to fraction form
    98,994.62/148,499.22 = 28,875.80/x
  3. Step 3: Cross multiply
    98,994.62x = 148,499.22 × 28,875.80
  4. Step 4: Simplify right side
    98,994.62x = 4,288,033,776.88
  5. Step 5: Solve for x
    x = 4,288,033,776.88/98,994.62
  6. Step 6: Final answer
    x = 43,315.83

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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.