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Finding the Fourth Proportional to 201,616.90, 302,425.35 and 83,373.10

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Solution

The fourth proportional to 201,616.90, 302,425.35 and 83,373.10 is: 125,059.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,616.90 : 302,425.35 = 83,373.10 : x
  2. Step 2: Convert to fraction form
    201,616.90/302,425.35 = 83,373.10/x
  3. Step 3: Cross multiply
    201,616.90x = 302,425.35 × 83,373.10
  4. Step 4: Simplify right side
    201,616.90x = 25,214,138,948.09
  5. Step 5: Solve for x
    x = 25,214,138,948.09/201,616.90
  6. Step 6: Final answer
    x = 125,059.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.