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Finding the Fourth Proportional to 99,255.91, 148,800.14 and 43,053.68

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Solution

The fourth proportional to 99,255.91, 148,800.14 and 43,053.68 is: 64,544.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,255.91 : 148,800.14 = 43,053.68 : x
  2. Step 2: Convert to fraction form
    99,255.91/148,800.14 = 43,053.68/x
  3. Step 3: Cross multiply
    99,255.91x = 148,800.14 × 43,053.68
  4. Step 4: Simplify right side
    99,255.91x = 6,406,393,396.25
  5. Step 5: Solve for x
    x = 6,406,393,396.25/99,255.91
  6. Step 6: Final answer
    x = 64,544.20

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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.