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Finding the Fourth Proportional to 99,395.58, 149,094.58 and 55,108.82

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Solution

The fourth proportional to 99,395.58, 149,094.58 and 55,108.82 is: 82,663.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,395.58 : 149,094.58 = 55,108.82 : x
  2. Step 2: Convert to fraction form
    99,395.58/149,094.58 = 55,108.82/x
  3. Step 3: Cross multiply
    99,395.58x = 149,094.58 × 55,108.82
  4. Step 4: Simplify right side
    99,395.58x = 8,216,426,372.20
  5. Step 5: Solve for x
    x = 8,216,426,372.20/99,395.58
  6. Step 6: Final answer
    x = 82,663.90

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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.