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Finding the Fourth Proportional to 235,341.80, 324,770.53 and 127,911.83

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Solution

The fourth proportional to 235,341.80, 324,770.53 and 127,911.83 is: 176,517.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,341.80 : 324,770.53 = 127,911.83 : x
  2. Step 2: Convert to fraction form
    235,341.80/324,770.53 = 127,911.83/x
  3. Step 3: Cross multiply
    235,341.80x = 324,770.53 × 127,911.83
  4. Step 4: Simplify right side
    235,341.80x = 41,541,992,182.81
  5. Step 5: Solve for x
    x = 41,541,992,182.81/235,341.80
  6. Step 6: Final answer
    x = 176,517.70

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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.