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Finding the Fourth Proportional to 363,941.16, 545,801.58 and 127,239.72

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Solution

The fourth proportional to 363,941.16, 545,801.58 and 127,239.72 is: 190,821.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,941.16 : 545,801.58 = 127,239.72 : x
  2. Step 2: Convert to fraction form
    363,941.16/545,801.58 = 127,239.72/x
  3. Step 3: Cross multiply
    363,941.16x = 545,801.58 × 127,239.72
  4. Step 4: Simplify right side
    363,941.16x = 69,447,640,214.76
  5. Step 5: Solve for x
    x = 69,447,640,214.76/363,941.16
  6. Step 6: Final answer
    x = 190,821.07

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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.