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Finding the Fourth Proportional to 120,002.01, 165,602.85 and 65,554.92

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Solution

The fourth proportional to 120,002.01, 165,602.85 and 65,554.92 is: 90,465.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,002.01 : 165,602.85 = 65,554.92 : x
  2. Step 2: Convert to fraction form
    120,002.01/165,602.85 = 65,554.92/x
  3. Step 3: Cross multiply
    120,002.01x = 165,602.85 × 65,554.92
  4. Step 4: Simplify right side
    120,002.01x = 10,856,081,583.52
  5. Step 5: Solve for x
    x = 10,856,081,583.52/120,002.01
  6. Step 6: Final answer
    x = 90,465.83

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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.