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Finding the Fourth Proportional to 255,624.67, 353,098.98 and 190,981.56

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Solution

The fourth proportional to 255,624.67, 353,098.98 and 190,981.56 is: 263,806.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,624.67 : 353,098.98 = 190,981.56 : x
  2. Step 2: Convert to fraction form
    255,624.67/353,098.98 = 190,981.56/x
  3. Step 3: Cross multiply
    255,624.67x = 353,098.98 × 190,981.56
  4. Step 4: Simplify right side
    255,624.67x = 67,435,395,358.93
  5. Step 5: Solve for x
    x = 67,435,395,358.93/255,624.67
  6. Step 6: Final answer
    x = 263,806.29

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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.