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Finding the Fourth Proportional to 363,887.20, 545,830.80 and 249,725.80

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Solution

The fourth proportional to 363,887.20, 545,830.80 and 249,725.80 is: 374,588.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,887.20 : 545,830.80 = 249,725.80 : x
  2. Step 2: Convert to fraction form
    363,887.20/545,830.80 = 249,725.80/x
  3. Step 3: Cross multiply
    363,887.20x = 545,830.80 × 249,725.80
  4. Step 4: Simplify right side
    363,887.20x = 136,308,033,194.64
  5. Step 5: Solve for x
    x = 136,308,033,194.64/363,887.20
  6. Step 6: Final answer
    x = 374,588.70

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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.