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Finding the Fourth Proportional to 118,998.99, 178,411.01 and 56,713.23

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Solution

The fourth proportional to 118,998.99, 178,411.01 and 56,713.23 is: 85,028.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,998.99 : 178,411.01 = 56,713.23 : x
  2. Step 2: Convert to fraction form
    118,998.99/178,411.01 = 56,713.23/x
  3. Step 3: Cross multiply
    118,998.99x = 178,411.01 × 56,713.23
  4. Step 4: Simplify right side
    118,998.99x = 10,118,264,361.10
  5. Step 5: Solve for x
    x = 10,118,264,361.10/118,998.99
  6. Step 6: Final answer
    x = 85,028.15

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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.