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Finding the Fourth Proportional to 165,533.99, 228,421.08 and 92,920.25

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Solution

The fourth proportional to 165,533.99, 228,421.08 and 92,920.25 is: 128,221.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,533.99 : 228,421.08 = 92,920.25 : x
  2. Step 2: Convert to fraction form
    165,533.99/228,421.08 = 92,920.25/x
  3. Step 3: Cross multiply
    165,533.99x = 228,421.08 × 92,920.25
  4. Step 4: Simplify right side
    165,533.99x = 21,224,944,429.92
  5. Step 5: Solve for x
    x = 21,224,944,429.92/165,533.99
  6. Step 6: Final answer
    x = 128,221.07

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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.