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Finding the Fourth Proportional to 176,715.90, 264,879.45 and 76,859.10

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Solution

The fourth proportional to 176,715.90, 264,879.45 and 76,859.10 is: 115,204.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,715.90 : 264,879.45 = 76,859.10 : x
  2. Step 2: Convert to fraction form
    176,715.90/264,879.45 = 76,859.10/x
  3. Step 3: Cross multiply
    176,715.90x = 264,879.45 × 76,859.10
  4. Step 4: Simplify right side
    176,715.90x = 20,358,396,135.50
  5. Step 5: Solve for x
    x = 20,358,396,135.50/176,715.90
  6. Step 6: Final answer
    x = 115,204.10

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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.