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Finding the Fourth Proportional to 152,777.13, 210,871.20 and 104,398.64

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Solution

The fourth proportional to 152,777.13, 210,871.20 and 104,398.64 is: 144,096.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,777.13 : 210,871.20 = 104,398.64 : x
  2. Step 2: Convert to fraction form
    152,777.13/210,871.20 = 104,398.64/x
  3. Step 3: Cross multiply
    152,777.13x = 210,871.20 × 104,398.64
  4. Step 4: Simplify right side
    152,777.13x = 22,014,667,022.35
  5. Step 5: Solve for x
    x = 22,014,667,022.35/152,777.13
  6. Step 6: Final answer
    x = 144,096.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.