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Finding the Fourth Proportional to 231,736.80, 347,605.20 and 73,970.40

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Solution

The fourth proportional to 231,736.80, 347,605.20 and 73,970.40 is: 110,955.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,736.80 : 347,605.20 = 73,970.40 : x
  2. Step 2: Convert to fraction form
    231,736.80/347,605.20 = 73,970.40/x
  3. Step 3: Cross multiply
    231,736.80x = 347,605.20 × 73,970.40
  4. Step 4: Simplify right side
    231,736.80x = 25,712,495,686.08
  5. Step 5: Solve for x
    x = 25,712,495,686.08/231,736.80
  6. Step 6: Final answer
    x = 110,955.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.