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Finding the Fourth Proportional to 242,388.90, 363,972.15 and 163,851.30

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Solution

The fourth proportional to 242,388.90, 363,972.15 and 163,851.30 is: 246,039.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,388.90 : 363,972.15 = 163,851.30 : x
  2. Step 2: Convert to fraction form
    242,388.90/363,972.15 = 163,851.30/x
  3. Step 3: Cross multiply
    242,388.90x = 363,972.15 × 163,851.30
  4. Step 4: Simplify right side
    242,388.90x = 59,637,309,941.30
  5. Step 5: Solve for x
    x = 59,637,309,941.30/242,388.90
  6. Step 6: Final answer
    x = 246,039.77

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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.