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Finding the Fourth Proportional to 165,562, 228,475.56 and 90,111.04

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Solution

The fourth proportional to 165,562, 228,475.56 and 90,111.04 is: 124,353.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,562 : 228,475.56 = 90,111.04 : x
  2. Step 2: Convert to fraction form
    165,562/228,475.56 = 90,111.04/x
  3. Step 3: Cross multiply
    165,562x = 228,475.56 × 90,111.04
  4. Step 4: Simplify right side
    165,562x = 20,588,170,326.18
  5. Step 5: Solve for x
    x = 20,588,170,326.18/165,562
  6. Step 6: Final answer
    x = 124,353.24

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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.