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Finding the Fourth Proportional to 201,631.60, 302,447.40 and 61,390.23

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Solution

The fourth proportional to 201,631.60, 302,447.40 and 61,390.23 is: 92,085.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,631.60 : 302,447.40 = 61,390.23 : x
  2. Step 2: Convert to fraction form
    201,631.60/302,447.40 = 61,390.23/x
  3. Step 3: Cross multiply
    201,631.60x = 302,447.40 × 61,390.23
  4. Step 4: Simplify right side
    201,631.60x = 18,567,315,448.90
  5. Step 5: Solve for x
    x = 18,567,315,448.90/201,631.60
  6. Step 6: Final answer
    x = 92,085.35

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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.