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Finding the Fourth Proportional to 161,536.80, 241,844.40 and 99,328.80

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Solution

The fourth proportional to 161,536.80, 241,844.40 and 99,328.80 is: 148,709.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,536.80 : 241,844.40 = 99,328.80 : x
  2. Step 2: Convert to fraction form
    161,536.80/241,844.40 = 99,328.80/x
  3. Step 3: Cross multiply
    161,536.80x = 241,844.40 × 99,328.80
  4. Step 4: Simplify right side
    161,536.80x = 24,022,114,038.72
  5. Step 5: Solve for x
    x = 24,022,114,038.72/161,536.80
  6. Step 6: Final answer
    x = 148,709.85

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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.