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Finding the Fourth Proportional to 165,239.58, 228,032.06 and 89,788.08

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Solution

The fourth proportional to 165,239.58, 228,032.06 and 89,788.08 is: 123,908.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,239.58 : 228,032.06 = 89,788.08 : x
  2. Step 2: Convert to fraction form
    165,239.58/228,032.06 = 89,788.08/x
  3. Step 3: Cross multiply
    165,239.58x = 228,032.06 × 89,788.08
  4. Step 4: Simplify right side
    165,239.58x = 20,474,561,070.32
  5. Step 5: Solve for x
    x = 20,474,561,070.32/165,239.58
  6. Step 6: Final answer
    x = 123,908.33

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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.