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Finding the Fourth Proportional to 223,573.50, 308,535.42 and 121,601.22

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Solution

The fourth proportional to 223,573.50, 308,535.42 and 121,601.22 is: 167,811.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,573.50 : 308,535.42 = 121,601.22 : x
  2. Step 2: Convert to fraction form
    223,573.50/308,535.42 = 121,601.22/x
  3. Step 3: Cross multiply
    223,573.50x = 308,535.42 × 121,601.22
  4. Step 4: Simplify right side
    223,573.50x = 37,518,283,485.21
  5. Step 5: Solve for x
    x = 37,518,283,485.21/223,573.50
  6. Step 6: Final answer
    x = 167,811.85

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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.