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Finding the Fourth Proportional to 230,896.80, 346,345.20 and 64,663.20

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Solution

The fourth proportional to 230,896.80, 346,345.20 and 64,663.20 is: 96,994.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,896.80 : 346,345.20 = 64,663.20 : x
  2. Step 2: Convert to fraction form
    230,896.80/346,345.20 = 64,663.20/x
  3. Step 3: Cross multiply
    230,896.80x = 346,345.20 × 64,663.20
  4. Step 4: Simplify right side
    230,896.80x = 22,395,788,936.64
  5. Step 5: Solve for x
    x = 22,395,788,936.64/230,896.80
  6. Step 6: Final answer
    x = 96,994.80

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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.