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Finding the Fourth Proportional to 169,667.75, 255,693.27 and 152,821.86

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Solution

The fourth proportional to 169,667.75, 255,693.27 and 152,821.86 is: 230,306.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,667.75 : 255,693.27 = 152,821.86 : x
  2. Step 2: Convert to fraction form
    169,667.75/255,693.27 = 152,821.86/x
  3. Step 3: Cross multiply
    169,667.75x = 255,693.27 × 152,821.86
  4. Step 4: Simplify right side
    169,667.75x = 39,075,521,110.88
  5. Step 5: Solve for x
    x = 39,075,521,110.88/169,667.75
  6. Step 6: Final answer
    x = 230,306.13

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.