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Finding the Fourth Proportional to 143,663.68, 215,348.16 and 64,833.28

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Solution

The fourth proportional to 143,663.68, 215,348.16 and 64,833.28 is: 97,183.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,663.68 : 215,348.16 = 64,833.28 : x
  2. Step 2: Convert to fraction form
    143,663.68/215,348.16 = 64,833.28/x
  3. Step 3: Cross multiply
    143,663.68x = 215,348.16 × 64,833.28
  4. Step 4: Simplify right side
    143,663.68x = 13,961,727,554.76
  5. Step 5: Solve for x
    x = 13,961,727,554.76/143,663.68
  6. Step 6: Final answer
    x = 97,183.42

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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.