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Finding the Fourth Proportional to 316,352.72, 436,566.74 and 173,112.76

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Solution

The fourth proportional to 316,352.72, 436,566.74 and 173,112.76 is: 238,895.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,352.72 : 436,566.74 = 173,112.76 : x
  2. Step 2: Convert to fraction form
    316,352.72/436,566.74 = 173,112.76/x
  3. Step 3: Cross multiply
    316,352.72x = 436,566.74 × 173,112.76
  4. Step 4: Simplify right side
    316,352.72x = 75,575,273,285.60
  5. Step 5: Solve for x
    x = 75,575,273,285.60/316,352.72
  6. Step 6: Final answer
    x = 238,895.60

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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.