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Finding the Fourth Proportional to 111,987,606.60, 167,981,409.90 and 92,855,730.60

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Solution

The fourth proportional to 111,987,606.60, 167,981,409.90 and 92,855,730.60 is: 139,283,595.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,987,606.60 : 167,981,409.90 = 92,855,730.60 : x
  2. Step 2: Convert to fraction form
    111,987,606.60/167,981,409.90 = 92,855,730.60/x
  3. Step 3: Cross multiply
    111,987,606.60x = 167,981,409.90 × 92,855,730.60
  4. Step 4: Simplify right side
    111,987,606.60x = 15,598,036,543,482,572
  5. Step 5: Solve for x
    x = 15,598,036,543,482,572/111,987,606.60
  6. Step 6: Final answer
    x = 139,283,595.90

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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.