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Finding the Fourth Proportional to 259,873.94, 358,622.24 and 145,154.21

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Solution

The fourth proportional to 259,873.94, 358,622.24 and 145,154.21 is: 200,310.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,873.94 : 358,622.24 = 145,154.21 : x
  2. Step 2: Convert to fraction form
    259,873.94/358,622.24 = 145,154.21/x
  3. Step 3: Cross multiply
    259,873.94x = 358,622.24 × 145,154.21
  4. Step 4: Simplify right side
    259,873.94x = 52,055,528,658.74
  5. Step 5: Solve for x
    x = 52,055,528,658.74/259,873.94
  6. Step 6: Final answer
    x = 200,310.69

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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.