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Finding the Fourth Proportional to 223,399.56, 308,315.70 and 127,937.64

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Solution

The fourth proportional to 223,399.56, 308,315.70 and 127,937.64 is: 176,567.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,399.56 : 308,315.70 = 127,937.64 : x
  2. Step 2: Convert to fraction form
    223,399.56/308,315.70 = 127,937.64/x
  3. Step 3: Cross multiply
    223,399.56x = 308,315.70 × 127,937.64
  4. Step 4: Simplify right side
    223,399.56x = 39,445,183,032.95
  5. Step 5: Solve for x
    x = 39,445,183,032.95/223,399.56
  6. Step 6: Final answer
    x = 176,567.86

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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.