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Finding the Fourth Proportional to 259,387.49, 357,955.37 and 144,673.56

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Solution

The fourth proportional to 259,387.49, 357,955.37 and 144,673.56 is: 199,649.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,387.49 : 357,955.37 = 144,673.56 : x
  2. Step 2: Convert to fraction form
    259,387.49/357,955.37 = 144,673.56/x
  3. Step 3: Cross multiply
    259,387.49x = 357,955.37 × 144,673.56
  4. Step 4: Simplify right side
    259,387.49x = 51,786,677,699.02
  5. Step 5: Solve for x
    x = 51,786,677,699.02/259,387.49
  6. Step 6: Final answer
    x = 199,649.87

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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.