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Finding the Fourth Proportional to 93,227.60, 139,841.40 and 89,145.20

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Solution

The fourth proportional to 93,227.60, 139,841.40 and 89,145.20 is: 133,717.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,227.60 : 139,841.40 = 89,145.20 : x
  2. Step 2: Convert to fraction form
    93,227.60/139,841.40 = 89,145.20/x
  3. Step 3: Cross multiply
    93,227.60x = 139,841.40 × 89,145.20
  4. Step 4: Simplify right side
    93,227.60x = 12,466,189,571.28
  5. Step 5: Solve for x
    x = 12,466,189,571.28/93,227.60
  6. Step 6: Final answer
    x = 133,717.80

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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.