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Finding the Fourth Proportional to 363,987.60, 546,059.14 and 127,338

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Solution

The fourth proportional to 363,987.60, 546,059.14 and 127,338 is: 191,034.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,987.60 : 546,059.14 = 127,338 : x
  2. Step 2: Convert to fraction form
    363,987.60/546,059.14 = 127,338/x
  3. Step 3: Cross multiply
    363,987.60x = 546,059.14 × 127,338
  4. Step 4: Simplify right side
    363,987.60x = 69,534,078,769.32
  5. Step 5: Solve for x
    x = 69,534,078,769.32/363,987.60
  6. Step 6: Final answer
    x = 191,034.20

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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.