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Finding the Fourth Proportional to 259,039.80, 357,480.90 and 144,326.04

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Solution

The fourth proportional to 259,039.80, 357,480.90 and 144,326.04 is: 199,173.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,039.80 : 357,480.90 = 144,326.04 : x
  2. Step 2: Convert to fraction form
    259,039.80/357,480.90 = 144,326.04/x
  3. Step 3: Cross multiply
    259,039.80x = 357,480.90 × 144,326.04
  4. Step 4: Simplify right side
    259,039.80x = 51,593,802,672.64
  5. Step 5: Solve for x
    x = 51,593,802,672.64/259,039.80
  6. Step 6: Final answer
    x = 199,173.26

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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.