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Finding the Fourth Proportional to 354,073.78, 531,163.05 and 117,364.24

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Solution

The fourth proportional to 354,073.78, 531,163.05 and 117,364.24 is: 176,063.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,073.78 : 531,163.05 = 117,364.24 : x
  2. Step 2: Convert to fraction form
    354,073.78/531,163.05 = 117,364.24/x
  3. Step 3: Cross multiply
    354,073.78x = 531,163.05 × 117,364.24
  4. Step 4: Simplify right side
    354,073.78x = 62,339,547,679.33
  5. Step 5: Solve for x
    x = 62,339,547,679.33/354,073.78
  6. Step 6: Final answer
    x = 176,063.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.