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Finding the Fourth Proportional to 176,803.53, 243,968.90 and 104,201.70

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Solution

The fourth proportional to 176,803.53, 243,968.90 and 104,201.70 is: 143,786.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,803.53 : 243,968.90 = 104,201.70 : x
  2. Step 2: Convert to fraction form
    176,803.53/243,968.90 = 104,201.70/x
  3. Step 3: Cross multiply
    176,803.53x = 243,968.90 × 104,201.70
  4. Step 4: Simplify right side
    176,803.53x = 25,421,973,606.12
  5. Step 5: Solve for x
    x = 25,421,973,606.12/176,803.53
  6. Step 6: Final answer
    x = 143,786.57

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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.