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Finding the Fourth Proportional to 118,899.52, 178,366.56 and 63,465.28

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Solution

The fourth proportional to 118,899.52, 178,366.56 and 63,465.28 is: 95,207.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,899.52 : 178,366.56 = 63,465.28 : x
  2. Step 2: Convert to fraction form
    118,899.52/178,366.56 = 63,465.28/x
  3. Step 3: Cross multiply
    118,899.52x = 178,366.56 × 63,465.28
  4. Step 4: Simplify right side
    118,899.52x = 11,320,083,673.04
  5. Step 5: Solve for x
    x = 11,320,083,673.04/118,899.52
  6. Step 6: Final answer
    x = 95,207.14

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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.