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Finding the Fourth Proportional to 223,307.60, 308,190.96 and 127,845.05

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Solution

The fourth proportional to 223,307.60, 308,190.96 and 127,845.05 is: 176,441.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,307.60 : 308,190.96 = 127,845.05 : x
  2. Step 2: Convert to fraction form
    223,307.60/308,190.96 = 127,845.05/x
  3. Step 3: Cross multiply
    223,307.60x = 308,190.96 × 127,845.05
  4. Step 4: Simplify right side
    223,307.60x = 39,400,687,149.79
  5. Step 5: Solve for x
    x = 39,400,687,149.79/223,307.60
  6. Step 6: Final answer
    x = 176,441.32

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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.