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Finding the Fourth Proportional to 178,433, 246,237.54 and 98,945

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Solution

The fourth proportional to 178,433, 246,237.54 and 98,945 is: 136,544.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,433 : 246,237.54 = 98,945 : x
  2. Step 2: Convert to fraction form
    178,433/246,237.54 = 98,945/x
  3. Step 3: Cross multiply
    178,433x = 246,237.54 × 98,945
  4. Step 4: Simplify right side
    178,433x = 24,363,973,395.30
  5. Step 5: Solve for x
    x = 24,363,973,395.30/178,433
  6. Step 6: Final answer
    x = 136,544.10

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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.