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Finding the Fourth Proportional to 316,548.88, 436,837.25 and 173,308.88

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Solution

The fourth proportional to 316,548.88, 436,837.25 and 173,308.88 is: 239,166.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,548.88 : 436,837.25 = 173,308.88 : x
  2. Step 2: Convert to fraction form
    316,548.88/436,837.25 = 173,308.88/x
  3. Step 3: Cross multiply
    316,548.88x = 436,837.25 × 173,308.88
  4. Step 4: Simplify right side
    316,548.88x = 75,707,774,539.78
  5. Step 5: Solve for x
    x = 75,707,774,539.78/316,548.88
  6. Step 6: Final answer
    x = 239,166.14

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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.