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Finding the Fourth Proportional to 292,815.60, 439,369.20 and 166,552.80

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Solution

The fourth proportional to 292,815.60, 439,369.20 and 166,552.80 is: 249,912.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,815.60 : 439,369.20 = 166,552.80 : x
  2. Step 2: Convert to fraction form
    292,815.60/439,369.20 = 166,552.80/x
  3. Step 3: Cross multiply
    292,815.60x = 439,369.20 × 166,552.80
  4. Step 4: Simplify right side
    292,815.60x = 73,178,170,493.76
  5. Step 5: Solve for x
    x = 73,178,170,493.76/292,815.60
  6. Step 6: Final answer
    x = 249,912.13

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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.