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Finding the Fourth Proportional to 166,758.45, 230,124.80 and 90,275.72

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Solution

The fourth proportional to 166,758.45, 230,124.80 and 90,275.72 is: 124,579.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,758.45 : 230,124.80 = 90,275.72 : x
  2. Step 2: Convert to fraction form
    166,758.45/230,124.80 = 90,275.72/x
  3. Step 3: Cross multiply
    166,758.45x = 230,124.80 × 90,275.72
  4. Step 4: Simplify right side
    166,758.45x = 20,774,680,577.12
  5. Step 5: Solve for x
    x = 20,774,680,577.12/166,758.45
  6. Step 6: Final answer
    x = 124,579.48

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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.