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Finding the Fourth Proportional to 167,256.64, 230,810.31 and 90,775.87

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Solution

The fourth proportional to 167,256.64, 230,810.31 and 90,775.87 is: 125,268.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,256.64 : 230,810.31 = 90,775.87 : x
  2. Step 2: Convert to fraction form
    167,256.64/230,810.31 = 90,775.87/x
  3. Step 3: Cross multiply
    167,256.64x = 230,810.31 × 90,775.87
  4. Step 4: Simplify right side
    167,256.64x = 20,952,006,695.22
  5. Step 5: Solve for x
    x = 20,952,006,695.22/167,256.64
  6. Step 6: Final answer
    x = 125,268.61

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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.