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Finding the Fourth Proportional to 165,574.64, 228,493.32 and 90,122.96

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Solution

The fourth proportional to 165,574.64, 228,493.32 and 90,122.96 is: 124,369.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,574.64 : 228,493.32 = 90,122.96 : x
  2. Step 2: Convert to fraction form
    165,574.64/228,493.32 = 90,122.96/x
  3. Step 3: Cross multiply
    165,574.64x = 228,493.32 × 90,122.96
  4. Step 4: Simplify right side
    165,574.64x = 20,592,494,338.63
  5. Step 5: Solve for x
    x = 20,592,494,338.63/165,574.64
  6. Step 6: Final answer
    x = 124,369.86

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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.