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Finding the Fourth Proportional to 259,301.50, 357,836.08 and 140,069.50

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Solution

The fourth proportional to 259,301.50, 357,836.08 and 140,069.50 is: 193,295.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,301.50 : 357,836.08 = 140,069.50 : x
  2. Step 2: Convert to fraction form
    259,301.50/357,836.08 = 140,069.50/x
  3. Step 3: Cross multiply
    259,301.50x = 357,836.08 × 140,069.50
  4. Step 4: Simplify right side
    259,301.50x = 50,121,920,807.56
  5. Step 5: Solve for x
    x = 50,121,920,807.56/259,301.50
  6. Step 6: Final answer
    x = 193,295.92

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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.