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Finding the Fourth Proportional to 165,477.93, 228,352.34 and 91,885.78

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Solution

The fourth proportional to 165,477.93, 228,352.34 and 91,885.78 is: 126,798.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,477.93 : 228,352.34 = 91,885.78 : x
  2. Step 2: Convert to fraction form
    165,477.93/228,352.34 = 91,885.78/x
  3. Step 3: Cross multiply
    165,477.93x = 228,352.34 × 91,885.78
  4. Step 4: Simplify right side
    165,477.93x = 20,982,332,875.73
  5. Step 5: Solve for x
    x = 20,982,332,875.73/165,477.93
  6. Step 6: Final answer
    x = 126,798.38

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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.