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Finding the Fourth Proportional to 165,646.80, 228,591.72 and 93,039.60

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Solution

The fourth proportional to 165,646.80, 228,591.72 and 93,039.60 is: 128,394.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,646.80 : 228,591.72 = 93,039.60 : x
  2. Step 2: Convert to fraction form
    165,646.80/228,591.72 = 93,039.60/x
  3. Step 3: Cross multiply
    165,646.80x = 228,591.72 × 93,039.60
  4. Step 4: Simplify right side
    165,646.80x = 21,268,082,192.11
  5. Step 5: Solve for x
    x = 21,268,082,192.11/165,646.80
  6. Step 6: Final answer
    x = 128,394.16

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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.