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Finding the Fourth Proportional to 118,907.52, 178,378.56 and 63,473.28

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Solution

The fourth proportional to 118,907.52, 178,378.56 and 63,473.28 is: 95,219.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,907.52 : 178,378.56 = 63,473.28 : x
  2. Step 2: Convert to fraction form
    118,907.52/178,378.56 = 63,473.28/x
  3. Step 3: Cross multiply
    118,907.52x = 178,378.56 × 63,473.28
  4. Step 4: Simplify right side
    118,907.52x = 11,322,272,284.88
  5. Step 5: Solve for x
    x = 11,322,272,284.88/118,907.52
  6. Step 6: Final answer
    x = 95,219.14

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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.