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Finding the Fourth Proportional to 143,467.68, 215,199.48 and 64,525.92

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Solution

The fourth proportional to 143,467.68, 215,199.48 and 64,525.92 is: 96,787.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,467.68 : 215,199.48 = 64,525.92 : x
  2. Step 2: Convert to fraction form
    143,467.68/215,199.48 = 64,525.92/x
  3. Step 3: Cross multiply
    143,467.68x = 215,199.48 × 64,525.92
  4. Step 4: Simplify right side
    143,467.68x = 13,885,944,430.52
  5. Step 5: Solve for x
    x = 13,885,944,430.52/143,467.68
  6. Step 6: Final answer
    x = 96,787.96

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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.