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Finding the Fourth Proportional to 255,010.50, 351,914.49 and 141,830.82

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Solution

The fourth proportional to 255,010.50, 351,914.49 and 141,830.82 is: 195,726.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,010.50 : 351,914.49 = 141,830.82 : x
  2. Step 2: Convert to fraction form
    255,010.50/351,914.49 = 141,830.82/x
  3. Step 3: Cross multiply
    255,010.50x = 351,914.49 × 141,830.82
  4. Step 4: Simplify right side
    255,010.50x = 49,912,320,686.58
  5. Step 5: Solve for x
    x = 49,912,320,686.58/255,010.50
  6. Step 6: Final answer
    x = 195,726.53

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1.5x scale

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.