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Finding the Fourth Proportional to 292,806.40, 439,209.60 and 166,835.20

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Solution

The fourth proportional to 292,806.40, 439,209.60 and 166,835.20 is: 250,252.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,806.40 : 439,209.60 = 166,835.20 : x
  2. Step 2: Convert to fraction form
    292,806.40/439,209.60 = 166,835.20/x
  3. Step 3: Cross multiply
    292,806.40x = 439,209.60 × 166,835.20
  4. Step 4: Simplify right side
    292,806.40x = 73,275,621,457.92
  5. Step 5: Solve for x
    x = 73,275,621,457.92/292,806.40
  6. Step 6: Final answer
    x = 250,252.80

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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.