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Finding the Fourth Proportional to 194,491.58, 291,620.72 and 89,178.62

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Solution

The fourth proportional to 194,491.58, 291,620.72 and 89,178.62 is: 133,714.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,491.58 : 291,620.72 = 89,178.62 : x
  2. Step 2: Convert to fraction form
    194,491.58/291,620.72 = 89,178.62/x
  3. Step 3: Cross multiply
    194,491.58x = 291,620.72 × 89,178.62
  4. Step 4: Simplify right side
    194,491.58x = 26,006,333,373.01
  5. Step 5: Solve for x
    x = 26,006,333,373.01/194,491.58
  6. Step 6: Final answer
    x = 133,714.44

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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.