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Finding the Fourth Proportional to 178,737.60, 268,203.60 and 73,567.20

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Solution

The fourth proportional to 178,737.60, 268,203.60 and 73,567.20 is: 110,390.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,737.60 : 268,203.60 = 73,567.20 : x
  2. Step 2: Convert to fraction form
    178,737.60/268,203.60 = 73,567.20/x
  3. Step 3: Cross multiply
    178,737.60x = 268,203.60 × 73,567.20
  4. Step 4: Simplify right side
    178,737.60x = 19,730,987,881.92
  5. Step 5: Solve for x
    x = 19,730,987,881.92/178,737.60
  6. Step 6: Final answer
    x = 110,390.81

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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.