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Finding the Fourth Proportional to 169,709.94, 254,565.90 and 57,390.96

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Solution

The fourth proportional to 169,709.94, 254,565.90 and 57,390.96 is: 86,086.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,709.94 : 254,565.90 = 57,390.96 : x
  2. Step 2: Convert to fraction form
    169,709.94/254,565.90 = 57,390.96/x
  3. Step 3: Cross multiply
    169,709.94x = 254,565.90 × 57,390.96
  4. Step 4: Simplify right side
    169,709.94x = 14,609,781,384.26
  5. Step 5: Solve for x
    x = 14,609,781,384.26/169,709.94
  6. Step 6: Final answer
    x = 86,086.77

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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.