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Finding the Fourth Proportional to 201,354.80, 302,032.20 and 61,113.20

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Solution

The fourth proportional to 201,354.80, 302,032.20 and 61,113.20 is: 91,669.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,354.80 : 302,032.20 = 61,113.20 : x
  2. Step 2: Convert to fraction form
    201,354.80/302,032.20 = 61,113.20/x
  3. Step 3: Cross multiply
    201,354.80x = 302,032.20 × 61,113.20
  4. Step 4: Simplify right side
    201,354.80x = 18,458,154,245.04
  5. Step 5: Solve for x
    x = 18,458,154,245.04/201,354.80
  6. Step 6: Final answer
    x = 91,669.80

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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.