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Finding the Fourth Proportional to 174,647.10, 262,007.10 and 99,705.90

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Solution

The fourth proportional to 174,647.10, 262,007.10 and 99,705.90 is: 149,579.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,647.10 : 262,007.10 = 99,705.90 : x
  2. Step 2: Convert to fraction form
    174,647.10/262,007.10 = 99,705.90/x
  3. Step 3: Cross multiply
    174,647.10x = 262,007.10 × 99,705.90
  4. Step 4: Simplify right side
    174,647.10x = 26,123,653,711.89
  5. Step 5: Solve for x
    x = 26,123,653,711.89/174,647.10
  6. Step 6: Final answer
    x = 149,579.66

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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.