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Finding the Fourth Proportional to 219,167.60, 329,140.20 and 169,368.80

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Solution

The fourth proportional to 219,167.60, 329,140.20 and 169,368.80 is: 254,353.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,167.60 : 329,140.20 = 169,368.80 : x
  2. Step 2: Convert to fraction form
    219,167.60/329,140.20 = 169,368.80/x
  3. Step 3: Cross multiply
    219,167.60x = 329,140.20 × 169,368.80
  4. Step 4: Simplify right side
    219,167.60x = 55,746,080,705.76
  5. Step 5: Solve for x
    x = 55,746,080,705.76/219,167.60
  6. Step 6: Final answer
    x = 254,353.66

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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.