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Finding the Fourth Proportional to 186,472.80, 257,244.30 and 126,064.62

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Solution

The fourth proportional to 186,472.80, 257,244.30 and 126,064.62 is: 173,909.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,472.80 : 257,244.30 = 126,064.62 : x
  2. Step 2: Convert to fraction form
    186,472.80/257,244.30 = 126,064.62/x
  3. Step 3: Cross multiply
    186,472.80x = 257,244.30 × 126,064.62
  4. Step 4: Simplify right side
    186,472.80x = 32,429,404,926.67
  5. Step 5: Solve for x
    x = 32,429,404,926.67/186,472.80
  6. Step 6: Final answer
    x = 173,909.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.