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Finding the Fourth Proportional to 259,515.21, 358,130.50 and 144,787.03

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Solution

The fourth proportional to 259,515.21, 358,130.50 and 144,787.03 is: 199,805.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,515.21 : 358,130.50 = 144,787.03 : x
  2. Step 2: Convert to fraction form
    259,515.21/358,130.50 = 144,787.03/x
  3. Step 3: Cross multiply
    259,515.21x = 358,130.50 × 144,787.03
  4. Step 4: Simplify right side
    259,515.21x = 51,852,651,447.42
  5. Step 5: Solve for x
    x = 51,852,651,447.42/259,515.21
  6. Step 6: Final answer
    x = 199,805.83

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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.