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Finding the Fourth Proportional to 194,442.80, 291,491.40 and 127,914.80

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Solution

The fourth proportional to 194,442.80, 291,491.40 and 127,914.80 is: 191,758.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,442.80 : 291,491.40 = 127,914.80 : x
  2. Step 2: Convert to fraction form
    194,442.80/291,491.40 = 127,914.80/x
  3. Step 3: Cross multiply
    194,442.80x = 291,491.40 × 127,914.80
  4. Step 4: Simplify right side
    194,442.80x = 37,286,064,132.72
  5. Step 5: Solve for x
    x = 37,286,064,132.72/194,442.80
  6. Step 6: Final answer
    x = 191,758.52

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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.