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Finding the Fourth Proportional to 316,522.14, 436,784.16 and 173,255.04

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Solution

The fourth proportional to 316,522.14, 436,784.16 and 173,255.04 is: 239,082.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,522.14 : 436,784.16 = 173,255.04 : x
  2. Step 2: Convert to fraction form
    316,522.14/436,784.16 = 173,255.04/x
  3. Step 3: Cross multiply
    316,522.14x = 436,784.16 × 173,255.04
  4. Step 4: Simplify right side
    316,522.14x = 75,675,057,112.17
  5. Step 5: Solve for x
    x = 75,675,057,112.17/316,522.14
  6. Step 6: Final answer
    x = 239,082.98

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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.