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Finding the Fourth Proportional to 194,617.40, 291,926.10 and 124,633.40

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Solution

The fourth proportional to 194,617.40, 291,926.10 and 124,633.40 is: 186,950.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,617.40 : 291,926.10 = 124,633.40 : x
  2. Step 2: Convert to fraction form
    194,617.40/291,926.10 = 124,633.40/x
  3. Step 3: Cross multiply
    194,617.40x = 291,926.10 × 124,633.40
  4. Step 4: Simplify right side
    194,617.40x = 36,383,742,391.74
  5. Step 5: Solve for x
    x = 36,383,742,391.74/194,617.40
  6. Step 6: Final answer
    x = 186,950.10

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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.