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Finding the Fourth Proportional to 292,611.03, 439,025.89 and 115,241.68

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Solution

The fourth proportional to 292,611.03, 439,025.89 and 115,241.68 is: 172,905.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,611.03 : 439,025.89 = 115,241.68 : x
  2. Step 2: Convert to fraction form
    292,611.03/439,025.89 = 115,241.68/x
  3. Step 3: Cross multiply
    292,611.03x = 439,025.89 × 115,241.68
  4. Step 4: Simplify right side
    292,611.03x = 50,594,081,127.10
  5. Step 5: Solve for x
    x = 50,594,081,127.10/292,611.03
  6. Step 6: Final answer
    x = 172,905.58

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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.