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Finding the Fourth Proportional to 194,881.80, 291,804.30 and 124,379.40

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Solution

The fourth proportional to 194,881.80, 291,804.30 and 124,379.40 is: 186,238.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,881.80 : 291,804.30 = 124,379.40 : x
  2. Step 2: Convert to fraction form
    194,881.80/291,804.30 = 124,379.40/x
  3. Step 3: Cross multiply
    194,881.80x = 291,804.30 × 124,379.40
  4. Step 4: Simplify right side
    194,881.80x = 36,294,443,751.42
  5. Step 5: Solve for x
    x = 36,294,443,751.42/194,881.80
  6. Step 6: Final answer
    x = 186,238.24

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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.