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Finding the Fourth Proportional to 201,506.80, 302,260.20 and 61,265.20

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Solution

The fourth proportional to 201,506.80, 302,260.20 and 61,265.20 is: 91,897.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,506.80 : 302,260.20 = 61,265.20 : x
  2. Step 2: Convert to fraction form
    201,506.80/302,260.20 = 61,265.20/x
  3. Step 3: Cross multiply
    201,506.80x = 302,260.20 × 61,265.20
  4. Step 4: Simplify right side
    201,506.80x = 18,518,031,605.04
  5. Step 5: Solve for x
    x = 18,518,031,605.04/201,506.80
  6. Step 6: Final answer
    x = 91,897.80

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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.