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Finding the Fourth Proportional to 194,809.80, 292,345.92 and 76,467.12

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Solution

The fourth proportional to 194,809.80, 292,345.92 and 76,467.12 is: 114,752.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,809.80 : 292,345.92 = 76,467.12 : x
  2. Step 2: Convert to fraction form
    194,809.80/292,345.92 = 76,467.12/x
  3. Step 3: Cross multiply
    194,809.80x = 292,345.92 × 76,467.12
  4. Step 4: Simplify right side
    194,809.80x = 22,354,850,546.15
  5. Step 5: Solve for x
    x = 22,354,850,546.15/194,809.80
  6. Step 6: Final answer
    x = 114,752.19

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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.