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Finding the Fourth Proportional to 118,455, 177,713.28 and 35,349

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Solution

The fourth proportional to 118,455, 177,713.28 and 35,349 is: 53,032.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,455 : 177,713.28 = 35,349 : x
  2. Step 2: Convert to fraction form
    118,455/177,713.28 = 35,349/x
  3. Step 3: Cross multiply
    118,455x = 177,713.28 × 35,349
  4. Step 4: Simplify right side
    118,455x = 6,281,986,734.72
  5. Step 5: Solve for x
    x = 6,281,986,734.72/118,455
  6. Step 6: Final answer
    x = 53,032.69

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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.