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Finding the Fourth Proportional to 316,956.07, 437,379.56 and 173,705.95

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Solution

The fourth proportional to 316,956.07, 437,379.56 and 173,705.95 is: 239,703.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,956.07 : 437,379.56 = 173,705.95 : x
  2. Step 2: Convert to fraction form
    316,956.07/437,379.56 = 173,705.95/x
  3. Step 3: Cross multiply
    316,956.07x = 437,379.56 × 173,705.95
  4. Step 4: Simplify right side
    316,956.07x = 75,975,431,111.85
  5. Step 5: Solve for x
    x = 75,975,431,111.85/316,956.07
  6. Step 6: Final answer
    x = 239,703.35

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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.