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Finding the Fourth Proportional to 242,989.52, 335,144.44 and 178,438.40

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Solution

The fourth proportional to 242,989.52, 335,144.44 and 178,438.40 is: 246,112.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,989.52 : 335,144.44 = 178,438.40 : x
  2. Step 2: Convert to fraction form
    242,989.52/335,144.44 = 178,438.40/x
  3. Step 3: Cross multiply
    242,989.52x = 335,144.44 × 178,438.40
  4. Step 4: Simplify right side
    242,989.52x = 59,802,637,642.50
  5. Step 5: Solve for x
    x = 59,802,637,642.50/242,989.52
  6. Step 6: Final answer
    x = 246,112.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.