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Finding the Fourth Proportional to 316,492.98, 436,760.28 and 173,253.12

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Solution

The fourth proportional to 316,492.98, 436,760.28 and 173,253.12 is: 239,089.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,492.98 : 436,760.28 = 173,253.12 : x
  2. Step 2: Convert to fraction form
    316,492.98/436,760.28 = 173,253.12/x
  3. Step 3: Cross multiply
    316,492.98x = 436,760.28 × 173,253.12
  4. Step 4: Simplify right side
    316,492.98x = 75,670,081,202.07
  5. Step 5: Solve for x
    x = 75,670,081,202.07/316,492.98
  6. Step 6: Final answer
    x = 239,089.29

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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.