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Finding the Fourth Proportional to 259,115.50, 357,668.88 and 151,720.06

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Solution

The fourth proportional to 259,115.50, 357,668.88 and 151,720.06 is: 209,426.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,115.50 : 357,668.88 = 151,720.06 : x
  2. Step 2: Convert to fraction form
    259,115.50/357,668.88 = 151,720.06/x
  3. Step 3: Cross multiply
    259,115.50x = 357,668.88 × 151,720.06
  4. Step 4: Simplify right side
    259,115.50x = 54,265,543,933.73
  5. Step 5: Solve for x
    x = 54,265,543,933.73/259,115.50
  6. Step 6: Final answer
    x = 209,426.08

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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.