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Finding the Fourth Proportional to 316,672.97, 436,900.16 and 180,609.10

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Solution

The fourth proportional to 316,672.97, 436,900.16 and 180,609.10 is: 249,178.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,672.97 : 436,900.16 = 180,609.10 : x
  2. Step 2: Convert to fraction form
    316,672.97/436,900.16 = 180,609.10/x
  3. Step 3: Cross multiply
    316,672.97x = 436,900.16 × 180,609.10
  4. Step 4: Simplify right side
    316,672.97x = 78,908,144,046.73
  5. Step 5: Solve for x
    x = 78,908,144,046.73/316,672.97
  6. Step 6: Final answer
    x = 249,178.66

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1.5x scale

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.