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Finding the Fourth Proportional to 165,775.70, 228,672.78 and 117,323.12

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Solution

The fourth proportional to 165,775.70, 228,672.78 and 117,323.12 is: 161,836.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,775.70 : 228,672.78 = 117,323.12 : x
  2. Step 2: Convert to fraction form
    165,775.70/228,672.78 = 117,323.12/x
  3. Step 3: Cross multiply
    165,775.70x = 228,672.78 × 117,323.12
  4. Step 4: Simplify right side
    165,775.70x = 26,828,604,008.67
  5. Step 5: Solve for x
    x = 26,828,604,008.67/165,775.70
  6. Step 6: Final answer
    x = 161,836.77

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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.