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Finding the Fourth Proportional to 363,533.94, 545,304.87 and 126,877.50

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Solution

The fourth proportional to 363,533.94, 545,304.87 and 126,877.50 is: 190,317.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,533.94 : 545,304.87 = 126,877.50 : x
  2. Step 2: Convert to fraction form
    363,533.94/545,304.87 = 126,877.50/x
  3. Step 3: Cross multiply
    363,533.94x = 545,304.87 × 126,877.50
  4. Step 4: Simplify right side
    363,533.94x = 69,186,918,643.43
  5. Step 5: Solve for x
    x = 69,186,918,643.43/363,533.94
  6. Step 6: Final answer
    x = 190,317.63

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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.