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Finding the Fourth Proportional to 201,627.80, 302,441.70 and 61,386.20

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Solution

The fourth proportional to 201,627.80, 302,441.70 and 61,386.20 is: 92,079.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,627.80 : 302,441.70 = 61,386.20 : x
  2. Step 2: Convert to fraction form
    201,627.80/302,441.70 = 61,386.20/x
  3. Step 3: Cross multiply
    201,627.80x = 302,441.70 × 61,386.20
  4. Step 4: Simplify right side
    201,627.80x = 18,565,746,684.54
  5. Step 5: Solve for x
    x = 18,565,746,684.54/201,627.80
  6. Step 6: Final answer
    x = 92,079.30

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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.