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Finding the Fourth Proportional to 111,992,906.60, 167,989,359.90 and 92,861,030.60

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Solution

The fourth proportional to 111,992,906.60, 167,989,359.90 and 92,861,030.60 is: 139,291,545.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,992,906.60 : 167,989,359.90 = 92,861,030.60 : x
  2. Step 2: Convert to fraction form
    111,992,906.60/167,989,359.90 = 92,861,030.60/x
  3. Step 3: Cross multiply
    111,992,906.60x = 167,989,359.90 × 92,861,030.60
  4. Step 4: Simplify right side
    111,992,906.60x = 15,599,665,090,148,312
  5. Step 5: Solve for x
    x = 15,599,665,090,148,312/111,992,906.60
  6. Step 6: Final answer
    x = 139,291,545.90

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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.